I HAVE TO DO THIS QUICKLYY!!

But, this unit has been very tricky, and I guess im not going to do very well on this test. Hopefully, my studying works. GOOD LUCK TO EVERYONE! Someone took my seat =/ BYE!

reflection

this unit was not that difficult...only a little confusing with the different steps for different operations....though it was a little confusing, I think this test will be a little hard, but still easy at the same time, you know what i mean? =]

reflection........

ahhhh!!! today is our test :) I think it's quite easy but I'm little bit confuse about addition, subtraction, and etc. I haven't done this unit before but I will do my best...... GOOD LUCK AND MERRY CHRISTMAS HO!HO! HO!..........

Review

I think overall, this unit was okay for me. There were times when i didn't understand it, and it took me awhile to understand, but now i finally do. I think that i should do well on this test, or atleast "okay".. but like i said before, i always tend to do bad on my tests, but i understand the exercises. Hopefully I do well, and goodluck to all.. AND HAVE A MERRY CHRISTMAS!! :)

r e f l e c t i o n

this was the hardest unit for me, so far. i get confused when factoring trinomials, especially when the constant of x squared is not 1. i guess it really takes practice to learn how to deal with these problems. i hope to do well on our test later. good luck to all! happy holidays! :]

reflection

This unit was pretty difficult for me because I missed nearly a week of school because of a sickness, which pretty much was the whole unit. But I feel pretty prepared for the test nonetheless. Good luck to everyone else.

Reflection

This unit has been the toughest one so far. Missing classes is not at all good. Everything is hard for me partly because i've been too distracted. Anyway, that's all i can say, i'm worried for tomorrow, hopefully i pass. At first it was easy, I knew what i was doing. then fractions, divisions, multiplication, adding, subtracting and equal signs are put together and i started getting confused of which to do first, or to do next, should i do this or that. This is it, last test.. Goodluck to everyone and Happy Holidays !

Reflection...

The unit was kinda new to me. But it's pre-cal, The heck! lol. Well i found it kinda difficult to understand, but i caught up somehow. I really hope i could pass the test tomorrow. So goodluck to everyone guys! It's our last day, we should party after the test. haha. Happy Holidays guys!

Reflection

Yes, I didn't forget to blog this time. LOL Well the Rational Expressions unit was pretty hard. But with enough practice I actually got it. But some of it is still hard and some are easy like Solving Rational Expressions. I hope I do well on this test. Wow, I can't believe we have our test on the last day of school. Oh well. Good luck to everyone on the test =). Happy Holidays everyone and have a great winter break.

Last blog of the year! =O

I still have to fnnish my math homework and get it signed. -_-This unit is kind of easy. At least I get it a lot more than the past unit.I think I finally get how to do line questions! I know, shocker. I just realized that you have to insert the numbers in the right equation... I'm not blonde! =D Yeah, well at least I have the adding and subtracting questions down.I'll just have to think harder for the multiplication and subtraction ones. Okay, well I'm off to finish math homework.

Good luck everyone!

Answer Key for Review

Sorry folks. I can't get the answer key to show with formatting that is understandable. I will just tell you the answers to each question.

1. (x+1)/(x)
2. (x-2)/(x)
3. (-2x+2)/(6x² – 18x +12)
4. (-2x+3)/(3x-1)
5. (x-1)/(x-2)
6. (x-2)/(x-4)
7. (2x² - 8x)/(x² - 4x)
8. 1
9. (-3x+5)/(4x+5)
10. 1
11. (x+4)/(-3x-2)
12. (4x² + 30x – 18)/(– 16x² + 20x – 6)
13. (2)(x-3) / (x-4)(x+4)
14. 5/3
15. (5)(x+4)(x+3) / (x-5)(x-5)(x-1)
16. (x+1)(5)(x) / (x+5)(x-1)(x+2)

I hope this helps you.
Good luck on the test tomorrow, that's Friday Pacifico, in case you were wondering.

Mrs. Ingram

Reflection : Rational Expressions

Well, I still need to finish the expert blog thingy then finish all my math homework. This unit was pretty, not just the formulas but also the fact tat we were given a pile of English projects in a short period of time. I hope doing my homework might help me study but yeah... I might do bad this test (like I didn't do bad on my other tests...) but yeah... So.... Good luck and Happy Holidays.

PS: Oh and Al, did you really do what I told you?! And Allan, don't cut yourself. That's bad :o. And Ash, don't make a good joke cause your sucky jokes are funnier XD

my reflection on the last day of the year blog ..:o

well this unit ....I have many doubts in but in this test I will try my hardest seriously! I'm going to study and review from now till 11:00 pm no lies i'll take a break for a minute or two this and there to get milk or go to the washroom , ....but forshure i am gonna study and pass this quiz! ..If i don't then i'll be sad and cut my self j/k ..I'll just be very depressed.
Well good luck to all and happy holidays!

p.s wish me good luck also..

Reflection

Tomorrow is our test =/ This unit was pretty straight forward in my opinion. The only difficulties I had with this unit was having to remember what to do first. Like, I had some trouble remember whether or not I was supposed to mulitply things first and common denominators, but I think a little bit of reviewing and working on some of those practice questions will help me a lot for the test in order for me to do well for tomorrow test. What sucks is it's on the last day of school !!

maaaaan, test on the last day ? right now, i should study. haha and do all my assignments. this unit MIGHT be easy.. but theen, since i have too much hw, i need to review my stuff and finish everything. ahaha, and yes pj. this MIGHT be the test i beat you in :D haha.

reflection ;D

Test time again! and it's the last test of 2007! lol wow as if it's on the last day before winter break. -_-"" WHY COULDN'T IT BE ON THURSDAY?!?!?! lol. anyways, yea this unit was kinda easy, but like all the "x"s and "y"s and "t"s and "a"s and etc. and the -1's and the factoring yea that got pretty annoying a little bit? lol well yea i got confused quite a bit. I had to ask karen for help a lot of times this unit. so al and karen? this might be the test you beat me in. LOOL.. but im still gonna try my hardest. good luck to everyone and merry christmas/happy holidays/happy new years/happy-anything-else-that-you-would-celebrate-during-this-time-of-year. ;D

reflection....

tomorrow is our test in rational is it??=) anyways this unit is kinda easy but I'm still having trouble with my multiply and divide thingy here in this unit...hope I can get higher marks....anyways good luck to all of us hope we can all pass this test tomorrow..=) good luck people....i mean class mates....

Reflection ;>

helloooooooo! i'm still confused in this topic ,there's a lot of x's that you can found in every problem,but i will study hard to get a high mark .........!!!!!!!!! good luck

Addition and Subtraction

3/2+7/4 first: find the common denominator
6/4+7/4 2nd: when you already get the 2 which is the denominator ,multiply it with 3and 2
13/4 3rd: that will be the answer



6/x +7/2x first: find the common denominator
2(6/x)+7/2x 2nd: when you already get the 2 which is the denominator ,multiply it with 6and x
19/2x 3rd: that will be the answer


4/x+3 -5/x-2 first: find the common denominator
x-2(4/x+3) - x+3(5/x-2)2nd : multiply x-2 to 4/x+3 and multiply the x+3 to 5/x-2
4x-8-5x-15/(x-2)(x+3) 3rd: simplify them
-x-23/((x-2)(x+3) 4th :that will be the answer



just always remember that any expression should be simplified before you add it or subtract it.

and if the denominator is like this x2 +2x-15 always factor it then cancel.



EXERCISE NO........49 1-19



ANA SORIA IT'S YOUR TURN

Review

Hmm.. well, I thought this unit was pretty straight forward except for a few little parts. I understood most of it without needing help, so I should do well on this test. Hopefully i do, because i tend to do bad on tests, but i understand the assignments.. IT'S SO DUMB!! so.. too late to say goodluck to all, so i'll just say goodluck to me. :)

MY REFLECTION, yo :)

WELL, i get to take my test on monday with ashley and raia.
This unit has been pretty easy at points and just a bit confusion.
Uhm, this is a pretty short blog. but i dont know what else to say.
Was the test hard you guys? Any questions you guys remember :D ?
Muahahahah, just kidding. Good luck you two.

Sorry Mrs Ingram for not attending two of your classes. Um, we hope to hand in our assignment sheet in the beginning of the class, before we do the test. :)
BYE!

Cheers,
Jenn Lavina

Geometery

I think that this unit Geometery was pretty easy. There was some questions was hard but then it becames easy. I hope I do well on this test.

reflection

well this unit was not all easy but a alittle difficult yet very easy to catch on i think i will doo my best on this quizz and i hope everyone the best well good luck to all and good lcuk to al beating pj LOL

reflection, last minute. This test, i plan on getting a high mark, and hopefully i do. I PLAN ON BEATING PJ ;) haha, geometry was simple and yeah.. thats it i guess.

Reflection

This unit was pretty easy for me. The easiest part was the quadrilaterals. The hardest part was the word problems. I think I'll do well on the test.

*****REFLECTION*****

Hmmmmm........ actually, this unit which is Geometry was pretty hard for me and it took me a week before I finished the book exercises... well, that's because I'm so busy and I don't had enough time for everything... urhhgg.... There's a lot of things to do and I have to memorize all the formulas for tomorrow's exam......I hope I do well !!!! yah!!! so GOOD LUCK to everybody !!!!!

Reflection

This unit's been kinda easy for me. I think I'm going to be okay though. Drawing out shapes really help me with problem solvings. Hopefully this time I don't get confused or forget a step in an equation or something. I understand most of it, but a few of them gets me startled and i mess up everything. good luck to everyone!

Reflection : Geometry

This unit I have to work two times the effort that I normally have to put because Ana, Larlyn, Teara and I have to make the project thingy... I completed all my work in time which is :o because I normally don't do that. Good luck to all at ace-ing the test!

r e f l e c t i o n

this unit was okay. it wasn't easy for me, especially when this unit started, but with a few exercises to work on, i got it bit by bit. i hope i could still remember the formulas that we studied for tomorrow's test. good luck, everyone!

^-^ reflection -_-;

Ugh...... this test couldn't have come at a better time (can you see the sarcasm?) LMFAO. tmrw just happens to be the day when I have a geo test, a science booklet due, and a writer's workshop due. XD but hey, what can you do about it?

anyways, this unit was actually pretty easy! i thought it was gonna be reasonably hard because of the previous lessons. but i still did learn some new things like volume of a cone and sphere and surface area of a shpere. One of the most interesting things for me that i learned was the relationship between the area and sides and the whole factors thing. I think i'll do well on this test as long as i dont blank out becasue there were a lot of formulas to remember. but anyways, good luck to all!

P.S. Al if you wanna beat me, this might be the test, but you better try hard because i'm gonna be giving it my all. =D

reflection....

I think this unit is not really hard but sometimes when there's a problem solving it makes me sick hahha!! I'm not sure if I can get a high marks in this test but I hope I can pass this unit hehheh!!! well, I will do my best for tomorrow's test..... GOODLUCK :)

Reflection

I hated this unit! I don't know why but there was just something about it I didn't really like. I had some difficulty with that volume/area lesson, I was entirely confused. Besides from that lesson, I felt it was okay. Well the test is tomorrow so.. good luck?

This unit was kind of easy. Certainly a lot more enjoyable than the previous one. I got most of this unit except for a few of the questions but I'm pretty positive about them now. I have no clue how I'm going to do on the test. Maybe I'll get lucky this time. I understand how to do the questions but I over think them and end up with the wrong answer all the time. Haha, it's frustrating but I hope I'll do good.

reflection

this unit was not that hard just a little confusing to know with step to use with what you are trying to find. But other than that it was pretty easy to understand. I don't think this test will be that hard, but i will still study for it.

Reflection ;>

This unit was not really hard I guess! coz I didn't have much troubled,in terms of answering those exercises except...........in finding those old area or new area,I hope that tomorrow I'm gonna answer all those Questions!!!!!!!!!! ok!!!! Good Luck Kim and Good luck Everyone!!!!!!!!!









GOOD LUCK!!!!!!!!!!!!!!!!!!

Test Reflection on Geometry

This unit was eaaaaaaasy. Learned some things that I didn't know before. For example I learned how to get other angles in a rhombus easier than the other hard ways. Didnt have many problems with any of the lessons we had. So yeah good luck to everyone on the test. PS. I'm going to study hard enough to finally beat PJ. haaa ( sorry Ms. Ingram many typo's)

notes

yes, ok well i was supossed to scribe a while ago but I'm computer illiterate so i never figured out how to get a stupid picture on here until now. Anyways here we go,

Question on the left:

ok so the first thing you do with this is 2x -9 = x +5

add 9 to both sides ---- > +9= x +5 + 9

-------------------

now becomes---> 2x= x + 14

the next step is to get the x's on the same side

bring the x on the right to the left. ----> 2x = x + 14

-x = -x

-------------------

now your equation becomes -----> 2x - x = 14

______________

the x is already by itself ------> x = 14

ok so now lets move on to the question on the right.

so the first thing you do is add it all together.

--> 3x + 10 +7x + 70

becomes --> 10x + 80

ok so we know the rhombus is supplementary so it should add up to 180.

--> 10x + 80 = 180

what is x?

bring 80 to the other side--> 10x = 180 - 80 <-- because the value becomes negative

--> 10x = 100

-->divide both sides by 10

and you get x = 10

so now that we know x is 10 we can apply it to the equation

3(10) + 10

30 + 10 = 40 <--this is the angle so that must mean 7x + 70 is 140 because it has to equal 180.

Scribe : Spheres (Volume/Surface Area)

Click the image to view!

Well that's all to it. Have fun with that!
The next scribe I choose is Nounith ....your turn =)

Reflection

I think that the unit Exponents and Radicals seems easy. The first time I saw these questions it was hard but later I started to understand. The only hard part of the radicals were the ones on the triangle. I hope that I do well on this test. Good luck. =)

reflection

well easy well notthis unit was pretty reallly but it kindda was. The multiplying was difficult through some points but i pretty much got it. well good luck to all and have a good test day

reflection

I think that i will do well on this test. I thought the whole unti was pretty easy, but sometimes i got confused and i didnt get it. Now, i understand it because i looked over everthing, and asked if i didnt. Hopefully i do well, and good luck to all.

so this a last minute thing too cause i was in a rush -.- but yeah. There was a couple of things that i thought was pretty difficult in this unit like multiplying radicals that have different bases and things like that. some easy things that i liked were adding and subtracting the radicals. and i guess thats it so good luck to everyone on the test!

Reflection : Exponents and Radicals

Lol, Ms. Ingram just reminded us (me and Karen). That was funny! Anyways, the unit was cool. I learned alot. And I mean alot. I actually hand in assignments now. The one's that there's a radical inside a radical are the challenging ones. I hope I get high marks.

Good luck!

PS: No emoticons this time AHAHAHAHA

Reflection

Yeah, I don't think I did as well as I expected but yeah, good luck to everyone and I hope you guys didn't forget to do the radical triangle thing that is due!!

REFLECTION

last minute blogging? uh yeah. this unit was pretty easy. Nothing hard, radicals are pretty easy to understand. This is probably the easiest thing to understand out of all the math units. yuhp. I actually like this unit :D

r e f l e c t i o n

i didn't have a hard time understanding this unit. this was easier than the past beacause there are no formulas to remember, and the steps in solving a problem are short. good luck to everyone on our test!! :)

Reflection

I didn't have a hard time about Radicals
and I really learned all things about this stuff
hope I would pass the test.

reflection

Radical? This unit is quite easy though, and i hope that i can pass the text this time. LOL!By the way, good luck to everyone! ^^

*+=reflection=+*

Radicals is more easier than others its like you were just playing games and having fun with it...but I hope in our test tomorrow doesn't have the cosine law or sine law I'm really having trouble in that one...tomorrow we got test and I hope this time I can get the higher marks.. cuzzzz, lately I'm having trouble here in my pre cal class.but I hope this time its my turn to go up and have higher marks for this...GoOd LuCk To mE!!!




*+=good luck to everyone=+*





+=*LaRlYN*=+

Reflection

'Radicals' is actually an easy unit for me. I understand most of the steps to get the right answers, but radicals with fractions and divisions confuse me at times. Hopefully I do well tomorrow ! goodluck to everybody..

***REFLECTION***

ummmhhhh....... we have another test tomorrow ??? I guess I have to prefer for that... Well, solving radicals is quite hard for me,,, sometimes,,, I find it very confusing... But I think I can pass this test,,, pretty confident uhh!!!.... no I'm not... I'll just do what I can.... hmmmm.... well,,,, Good Luck to all of us!!!!

reflection

This unit was difficult in some ways and easy in others. Some of the stuff towards the end was more complicated and/or confusing; but all in all it wasn't too bad. The rules just take some getting used to. I think I'll do fine on the unit test tomorrow.

Rationalizing Radicals

Ok, now for the exciting topic of rationalizing radicals.

Example #1
__3__
√2+1

STEP ONE

Multiply both the numerator and the denominator by the conjugate. This is the same as the denominator, just with the second term's sign reversed. If there is only one sign in the denominator, don't change the sign.

__3__ (√2-1)
√2+1 (√2-1)

=

3√2-3
_____
2-1

STEP TWO

Solve the rest of the problem. REMEMBER TO REDUCE (if possible)!

3√2-3
_____
2-1

3√2-3
_____
1

= 3√2-3

Do the same for the rest.

Example #2

(√5 + √2)(√5-√2)

multiply the terms together

√2x - √10 +3√2-3
√2x- √10 + √10 - √4
5-2=3

Example #3

_7_ (√3-1) <-----conjugates
√3+1(√3-1) <-----

7√3 - 7
_____
3 - 1

= 7√3-7
______

2

Example #4

__2__ (√5 + 2)
√5 - √2 (√5+2)

2√5 + 2√2
_______
√25 + √10 √10 - √4

2√5+2√2
_______
5-2

2√5 + 2√2
________

3

Example #5

__15__ (√14+5)
√14 - 5 (√14+5)

15√14 + 75
__________
√196 + 5√14 - 5√14 - 25

15 √14 +75
_________
14 - 25

15√14 + 75
_______
-11

Example #6

4√15 (3√15 - 8)
______
3√15 + 8 (3√15-8)

12√225 - 32 √15
____________
9√225 - - 24√15 +24 √15 - 64

180 - 32√15
________
135 - 64

180 - 32√15
________
71

The next blogger is
Ana

Reflection...

I almost forgot to post a blog, but here it is. Well, the unit was pretty ok. I did better on this unit than the other unit that we had. I didn't expect to learn "Radicals" that fast, and I thought that this unit will end my pre-cal career(as if im good). lol just kidding. But my point is, it's kind of unbelievable that I didn't struggle with math THIS TIME! Yay for me! And I hope i'll do good on the test tomorrow. That's it! Goodluck to all!

MY REFLECTION:

This unit was not as easy as i thought itd be. I mean its simple, the facts and its pretty basic. Yet its confusing towards rationalozing the radicals. I just need to be careful, and hopefully ill do well. Good luck to everyone, and and. :) Yeaah... =P

Cheers,
Jenn Lavina

Reflection

Reflection again.. This unit was pretty average for me because some topics are difficult and some are not. And the crazy thing is when to use this and that. when to do this and when to use that. The Square Root Puzzle was fun but tricky. I hope our next unit will be as fun as this one. Okay everyone.. GOOD LUCK.. STUDY WELL..

r e f l e c t i o n

This unit wasn't bad...the only thing that I was having trouble with was knowing when to use what. For example, I did not know when I should simplify or multiply. But, now it's all cleared up. But other than that, I just need to remember what I need to do for each type.

Reflection

This unit has been a breeze! I actually paid more attention in class, and then everything felt kinda simpler. AND, I think the hardest part for me was when i had a cubed square root, I kept getting confused -_- . Besides all of that, I think this unit was good.

reflection...

ahhhhh!! we have test again.... ahm,, well I feel excited for tomorrow's test because I think it's easy, so I don't feel nervous for the test... I also learned this radicals when I was in Philippines so it's easy for me, I think... GOOD LUCK EVERYONE!!!!

! r~e~f~l~e~c~t~i~o~n !

Wow... we are just zooming through this course! lol. Well it's test time again. Radicals was alright I guess. It was sort of easy because you didn't have to put anything in decimals. You could've just left it in it's square root form or w/e it's called. The annoying part was rationalizing radicals. That probably took the longest, even though it was only 10 questions. I think I'll do well on the test? But you never know what could happen! Good luck everyone!

~pj~

REFLECTION

ah!!!!!!!!! another test but I'm pretty sure that i really understand this topic this is much easier than the previous topic.I love doing this stuff ,I'm really excited tomorrow...,,! GOOD LUCK!!!!!!!!!!!

Addition and subtraction with radicals

*NB: You can only add and subtract radicals if they are the same.
√<---- this is the radical sign just incase anyone is wondering.

Ex. √3 + √2=√3 + √2
√3 + √3 =2√3 <---because the radical is the same. Therefore, they can be combined.

Try: 1) 2√5+ 3√5 + 6√5=11√5
2) 5√7 +3√7-2√7=6√7


-What if the radical is different?

Ex. √12 + √18 - √27 + √8
Step one: Simplify if you can.

√12 √18 √27 √8
4x3 9x2 9x3 4x2 <----the first number always has to be a square root.
√4 x √3 + √9 x √2 + √9 x √3 + √4 x √2<---square root the first number.
2√3 + 3√2 - 3√3 + 2√2
Step two: Combine like terms.
2√3 - 3√3 +3√2 +2√2
-1√3 + 5√2

Ex. √12 + 2√8 -3√75 + √2
4x3 2√4x2 3√25x3 √2
√4 x √3 + 2√4 x √2 -3√25 x √3 + √2
2√3 + 2x2√2 - 3x5√3 + √2
2√3 + 4√2 - 15√3 + √2
=-13√3 + 5√2

Try: 1) √12 + √27
4x3 9x3
√4 x √3 + √9 x √3
2√3 + 3√3
= 5√3

2) √28 - √27 +√63 + √300
4x7 9x3 9x7 100x3
√4 x √7 - √9 x √3 + √9 x √7 + √100 x √3
2√7 - 3√3 + √3 x √7 + √10 x √3
= 5√7 + 7√3

Exercise # 34
Questions 1-9, 11, 13, 14

the next person to scribe is going to be..Katherine

Here are some other examples that I got on the internet

(a)

(b)

(c)

(d)

(e)

Solution

To evaluate these we will first convert them to exponent form and then evaluate that since we already know how to do that.

(a) These are together to make a point about the importance of the index in this notation. Let’s take a look at both of these.

So, the index is important. Different indexes will give different evaluations so make sure that you don’t drop the index unless it is a 2 (and hence we’re using square roots).

(b)

(c)

(d)

(e)

As we saw in the integer exponent section this does not have a real answer and so we can’t evaluate the radical of a negative number if the index is even. Note however that we can evaluate the radical of a negative number if the index is odd as the previous part shows.

Sorry for the delay of my scribe b'coz I didn't know i was the next... So... here it is now... I hope you'll understand the first examples that i wrote there....

By the way, our great teacher asked us to answer Exercise # 26 1-7 , 9-11 , 17-20
For the next scribe,,,,, I chose.................FRANCA !!!. good luck!!!

*Sorry guys if i posted my blog sooo late...*

Radicals

√72 → a value in a radicand
36^1/2→exponent


Exponent Laws

Multiplying: x³ . x² = x . x . x . x . x = x⁵
so x^m . xⁿ = x^m+n


Dividing: x⁵ ÷ x³ = x . x . x . x . x . x = x²
-------------- x . x . x

Power raised to a power:
(x³)² = (x . x . x)(x . x . x) = x²x² = x⁶
so (x^m)ⁿ = x^mn


Multiple base values:
(xy)³ = xy . xy . xy
= x . x . x . y . y . y = x³y³
so (xy)ⁿ = xⁿyⁿ


Examples of radicals:
√9 . √ 9 = 91
9^? . 9^? = 9¹
½ + ½ = 1

*Square root of fractional exponent form is x^1/2 = √x


3√27 . 3√27 . 3√27 = 271
27^? . 27^? . 27^? = 27¹
? + ? + ? = 1
1/3 + 1/3 + 1/3 = 1
³√x = 1/3
³√62 = 1/3
³√72 = (72)^1/2
= 7^2/3

*For assignment, answer Exercise 21 #1-15, 18-20*
*The next scribe will be inoj… im not even sure if this person hasn’t posted a scribe yet. =p*

Reflection

trigonometry

This unit's been easy for me, again, I forgot to blog. For me Trigonometry is the easiest. Hopefully I did well on the test. Word problems are the ones that are hard. Not all of them though. I wish everything in math were as easy as triangles !

Test post blog

I think this unit was quite easy. I learned how to do some easy ways to find angles and sides by using sine law and cosine law. At first it was quite hard but i understood it after doing some of the assignments. well good luck to everyone on there test

Reflection

Umm...yeah, this unit was easy. I think i will do good on this test. Pretty basic stuff. I think if you did your homework everyday then you should be fine and you wouldn't even need to study. Well, that all i got to say. Can't wait for the next unit....

reflection

This unit had some easy and some not so easy stuff in it. I found the Pythagoras theorem and SOH CAH TOA easy, while the cosine law was a little more difficult for me. Sine law was pretty easy too. I think I'll do pretty well on the test -- I think I'll get an A. I studied and practiced for it.

reflection (allans cool)

well this unit we are in is pretty hard they call it trigonometry but I call it "complicated" ! well since i was in mexico and i wasn't here for most of the trig stuff I probably won't do very well in the quiz today but i'll try my hardest. Yesterday while was studying trig i found it very easy for the sine and cosine and pythagoreous stuff but for the problem solving I think it was hard.... well good luck guys and have a good time doing the quiz-___-"

When we first learned how to do sine and cosine, my first thought after the lesson was "Letters should stay in the alphabet and out of mathematical equations!" But after a few questions and lessons it was easy. I thought it would be a lot harder, especially cosine, but I find it quite easy.. as long as I have a calculator near by. =)

Reflection : Trigonometry

The unit for me was kinda easy o.oa... I don't know why but evens out with the harder questions.... Anyways, like Ash said, pretty straightforward »» Cosine law takes a bit of time to do [talking about the angle ones XD]. I think I will do good in the test [don't give factor questions please >_>]
GOOD LUCK!

Oh, and word problems suck :P

Reflection

I think that this unit was a bit hard and easy. The only part that I think that is easy is Soh Cah Toa and a bit of Sine Law and Cosine Law. I think that using word problems is kind of hard for me because when you have to draw it out, it could be wrong or you are just confused. I hope I did well throught this unit and I hope I did well on the test. Good luck everyone on the test =)

r e f l e c t i o n

i was about to fall asleep. good thing, mrs. ingram popped in my head. that was just the time that i remembered we need to create a pre-test blog. -_- so even though i'm sooo sleepy now, here's my reflection..

at first, this unit was really confusing for me. i have studied only SOH CAH TOA last year so the sine and cosine laws were new to me. the exercises really helped me understand the things that were difficult to me. other than that, i found it fun to solve trigonometry questions. i hope we all do well on the test. good luck to all! :))

zzzZZ..

reflection...

ahhh!!! tomorrow is our test... I hope I can pass the test... well I know trigonometry is an easy unit but sometimes it's hard for me to visualize the diagram, so I'm a little bit nervous for tomorrow's test.. hehhe,, But if you guys can do it I think I can do it too right? hehhe!! well good luck to our test tomorrow.... :)

reflection

hmm.. i think i was pretty comfortable with this unit? i had a little trouble at the beginning because i kinda forgot how to do everything? lol.. but yeah. i think i should do pretty well on this test.. as long as i dont have a mental block.. like always.. but overall, i think this was a pretty straight forward unit. good luck everyone! =)

reflection

trigonometry, this unit was alright. i find it pretty easy. the only thing i have problems with is finding the side using cosine law. hopefully i get the hang of it by tomorrow. Everything else was pretty easy, and i didnt have much problems with it. but then, there are word problems, and sometimes i mess them up. hopefully i do well on the test. yeah.. now im gonna go study cosine law

<(^^<):Reflection:(>^^)>

Wow! Another test already? It seems like our last test was just yesterday!
lol. k so anyways, trigonomerty was pretty easy. i learned part of it last year so that kinda helped. the easiest part was SOH CAH TOA. that part was pretty basic. but then sine law and cosine law came just to make things harder. cosine law was confusing at first but then i got it afterwards. i think that ill do well on my test, but i dont want to be over-confident. so i guess that's all i have to say for now!
GOOD LUCK EVERYONE!!!

~pj~

Before i go with my mother and brother to refill our fridge :)
This is my reflection:

Trigonometry is an easy unit for me. It makes math fun. Soh Cah Toa is a real easy method to use compared to the sine and cosine law. However the real trouble i had are the word problems where you had to draw out the triangle's distances and angles, and when the diagram is not given. It's the only type of questions that im really worry about. I'd like to say good luck everyone :) I really enjoy this class. Haha!


Cheers,
Jenn Lavina

REFLECTION

I think our test will not be so hard ,because of the equation that we had solved in the game it really help me to know my mistakes and were should I focus , GOOD LUCK !!!!!!!!!! maybe I need to study our math lesson now higher MARK that's my aim............!!!!!!!!!!!!!!!!byE!!!!!!!!!

Reflection

The unit we are doing is Trigonometry. I understand most of what we've been taught and I think I will be doing well on this test. The only thing I had troubles with was the two triangles in the beginning and doing Cosine law with finding the angle. But now I understand how to do those things and I feel comfortable with doing the test tomorrow.

Reflection

Tomorrow we have a Trigonometry math test!! For this unit I think I was doing okay slightly better than the last unit. The only trouble I had was where to put the numbers. I'm not sure how to explain what I don't understand. Okay, well studying a little bit to refresh my memory is going to help me for the math test tomorrow, everyone will do fine!!!

--refelection--

Again we're going to have another test tomorrow. Which is about Trigonometry, triangles and stuff. The review did help me for tomorrow's test. This unit is the average one I guess. Because we took it last year but not everything. And the problem solvings are pretty hard but yet it did practice us for tomorrow's test. Argh.. okay that's all for now.. Lotsa things 2 do.. go0d luck evry1.. STUDY HARD..

***REFLECTION ***

Hhmmmmm..... we have a test tomorrow!!! and I don't know what to say.... hhmmmm... I think I'll pass on this test even though this unit gave me so much headache... but still, I'm not sure about that... Solving word problems is very hard for me and sometimes I make mistakes in making diagrams because I don't quite understand the problem very well... so I hope this test doesn't contain much of that...heh...heh...heh...I'm very busy today and there's a lot of things to do.... I HAVE TO STUDY NOW!!!!! GOOD LUCK!!!!!

Reflection...

* Im posting just to make sure*

I'm feeling kinda nervous about the trigonometry test on Friday. I know i found the Sine law and the Cosine law not that difficult, but i don't know how im gonna do on the test, but i'll try my very best to pass the test. Good luck to all, and keep up the good work guys!

*Im the next scribe person and im still waiting for a new lesson to use for my scribe, so don't post any scribes yet. Thanks* =)

Cosine Law

It is only used if you have SAS or SSS.

Important:
~> Only use cosine law once, then use sine law to finish question.

If you are looking for side a, the following equation must be used:
a² = b² + c² -2bc cosA

If you are looking for side b, the following equation must be used:
b² = a² + c² -2ac cosB

If you are looking for side c, the following equation must be used:
c² = a² + b² -2ab cosC


Example:

You have a triangular-shaped garden that you want to fance. You know two sidesare 50 m and 80 m and the included angle (angle between the sides) is 100^o. How many meters of fencing do you need?











b² = a² + c² - 2ac cosB


b² = 80² + 50² - 2(80)(50) cos100


b² = 6400 + 2500 - (8000).34


b² = 6180


b = 78.61




Here's a sample problem looking for an angle using the cosine law:

Find C where a = 200 m, b = 155 m, c = 172 m.

c² = a² + b² - 2ab cosC
172² = 200² + 155² - 2(200)(155) cosC
29584 = 40000 + 24025 - 62000 cosC
29584 - 64025 = -62000 cosC
-34441 = -62000 cosC
------------------------
-62000
cosC = 0.56
C = 56.3

Mrs. Ingram also asked us to answer Exercise 25, numbers 1-7.

Next scribe.. Rochelm!! Bet you didn't see that coming! :D

Sine Law


It is used when you are solving
a triangle that is not a right triangle


a/sinA = b/sinB = c/sinC


this is the equation we must follow
in Sine Law.

for example:

A triangle has 2 angles and a side,
angleA = 30° and angleB = 65°
side a = 5cm, look for side b.

5cm/sin30° = b/sin65°

b = 5cm/sin30°(sin65°)

b = 9.06cm

sinA/a = sinB/b = sinC/c
this equation is used when 2 sides is given
and you are looking for the angle.

for example:

A triangle has 2 sides and an angle,
side x = 6.8cm
side y = 5.1cm
and angleX = 49°
find angleY.

sinY/5.1cm = sin49°/6.8cm

sinY = sin49°/6.8cm(5.1cm)

angle­­Y = 34.47°

this is how to use the Sine Law.

the next scribe is >> Iana <<

{}(-,-){} zzZ...

next scribe is Erick! ^^

Trigonometry-Functions of Obtuse Angles

TRIGONOMETRY





Labelling Triangles


- Use CAPITAL LETTERS for the angles.
- Use small letters for the sides.




Pythagorus Theorom


A² + B² = C²



Sin A = opposite/hypotenues : SOH


Cos A = adjacent/hypotenues : CAH


Tan A = opposite/adjacent : TOA



* adjacent is the side of the triangle, thats beside the opposite of the angle.

Example 1

EXAMPLE 2

FOR HOMEWORK

- do Exercise 17 , # 1-6 , 12-20

THE NEXT SCRIBE IS..

Haishan (:

Reflection

Wow. I didn't know we had to do a relfection. Well just finished doing the test. I think that I did okay. I thought this unit, was a bit hard since there was different formulas to use. As well which points to use. I hope the next unit isn't hard. Hope everyone did well on their test.

-->>reflection<<--

wha..i d0n't kn0w we need 2 d0 s0me reflecton..anyways here it is.. analytic geometry f0r me was like..graphing all d way..i h0pe we'll have d simpler one next unit..this unit kinda makes me c0nfuse like every less0n we were d0ing..s0 yeah..i still h0pw we'll have d simpler one..and i h0pe i did go0d in d test..cuz i guess it's n0t..so0 yeah..go0d luck next unit..

Reflection

I understand analytic geometry quite well, but I get confused easily. Especially the way the wordings are arranged. The formulas sometimes confuse me, but for the most part, I understand it. The test was okay, but there were some questions I did not get. Hopefully I did good.

reflection :

Mmmmm..... Our test isn't that hard but Im not quite sure if some of my answers are correct... I don't know...... I'm very busy this week and I forgot to post a blog / reflection for this test.... OMG!!! I lose points for not doing this blog.... well, that's OK at least I have one now... heh... heh... heh...

I guess I'm very lucky this day. Our teacher gave us permission to use our formula sheet and it's very useful... whenever I forgot about something, I just look at the formula sheet and I remember all the things that I forgot!!!! kinda weird........ but that's the way it is !!!..... hope I did well on this test and let's wait for the results....... GOOD LUCK !!!

This unit was kinda hard for me because of "problems" lol. The formulas are kinda easy but I have this short term memory thing going on so I forget stuff. The test mi ght be hard for me this time around cause I have to study for "Filipino Language Exam" (yeah... study).... Kinda sad.... Good luck to the people taking the exam and good luck! Hope you guys get a good mark... (inside intent)

Reflection

For this unit i thought it was quite straight forward. i had some problems using table of values but then i got used to it. Some things that i thought was easy was the y-intercept. And yeah thats about it.. haha good luck on the test guys

Analytic Geometry Reflection

This unit wasn't that difficult for me --- I did have a lot of catching up to do after I missed a week while I was out of town, however. I'd say the hardest part was probably figuring out which formula to use when. I'm going to study a lot tonight. I'm very anxious, but hopefully I'll be able to pass the unit test tomorrow! =D

reflection

just got home, haven't study for my test yet. but i hope that i can pass the test though. but actually i dont think that i can pass the test, cuz graphing is so hard for me. and sometime i got mess up with the formulas. gud luck to everyone! have to study now. ^^

Reflection:

This unit was like the same in my last unit. Easy to understand, although, in this unit I need to watch my math more carefully so I dont lose any easy mistakes. Good luck to everyone :)

Cheers,
Jenn (:

Reflection

k, I don't know if we were supposed to make a reflection but I'm making one anyways.

This unit was okay, it wasn't super easy but it wasn't super hard. I learned a lot of new things, and at times I felt kind of confused with the questions, because I wasn't sure what they wanted me to do. But now that I finally reviewed my notes and stuff today things finally click! But it's pretty sad.. But anyways I feel slightly comfortable with the stuff now.

:):):):):):):):):):):):)

OMG this math test is gonna be hard!!! LOL ...i think well for me it will since i forget easily hopefully i will study my butt off till i remember but cheeaa i will study forshure no lies the excersizes for me are quite challenging but i like challenges as long as i have my notes right there i'm good! well good luck to all in the test and allans cool!-__-

reflection.

For this unit. I pretty much got through it alright. But then, since there are lots of equations to remember, i always get them mixed up. So hopefully, I do well on the test.

~Reflection~

Oh maaaaan. I almost forgot about this? We're we even supposed to do this? =S haah. Well okay then here it is:

This unit was okay? I mean like it wasn't hard but it wasn't easy either. There's quite a few formulas to remember so I guess that makes it kinda hard. The easiest part was probably figuring out the x and y intercepts and graphing the line. The hardest part was probably finding the equation for the perpendicular line? I used so much graph paper in this unit! But, oh well... K so anyways, yea I think I'll do okay on the test yenno as long as I don't mess up on the formulas and getthem mixed up or something? So yea, I guess that's all! Good luck everyone!

~pj~

October 18th, 2007

Graph the following equations onto one sheet of graphing paper:
y = 2x + 1
y = 2x + 7
y = 2x - 3
y = 2x - 7

This is what it should look like:
(click to view it much better)


Note that..

• all these lines are parallel
• lines that are parallel have equal slopes

Parallel lines

• never touch each other
• remains the same distance away to infinity
• equal lines

Perpendicular lines

• cross forming a 90° angle
• the slopes of the two lines will be negative reciprocals

If the slope of the perpendicular is a result of a negative reciprocal then it should look like this :
m = 2/1
m"perpendicular" = -1/2


Find the equation of the line to y = 3x + 4 that goes through (7, 16).

m = 3/1
point: (7, 16)

y - y1 = m(x - x1)
y - 16 = 3/1(x - 21)
1[y - 16 = 3/1(x-21)]
y - 16 = 3x -21
y = 3x - 5

Standard Form : 0 = 3x - y - 5

Easy right? Time to use m "perpendicular":


Find the equation for the line "perpendicular" to y = 3x + 4 that goes through (7, 16)

m = 3/1
m "perpendicular" = -1/3

y - y1 = m (x - x1)
y - 16 = -1/3 (x - 7)
3[ y - 16 = -1/3 (x -7) ]
3y - 48 = x + 7

Standard Form: 0 = x + y -55


Homework: Exercise 16: Determining Equations of Lines - 3
Questions 1- 15

Test moved to Tuesday, October 23, 2007
Next scribe is KARENd, heres my other present for you c(:
Her birthday was yesterday everyone, for anyone who didnt know! :P


Cheers,
Jenn (:

October 16

Finding Equations

1.) Use Slope Intercept

y = mx + b

m = slope
b = why intercept

2.) Point-Slope form

y - y1 = m ( x - x1)

m = 3 P(7, 36)

y - 36 = 3 (x - 7)
y - 36 = 3x - 21
y = 3x - 21 + 36
y = 3x + 15 ---> slope intercept form ( y = mx + b)

Ax + By + C = 0 ---> standard form
3x - y + 15 = 0 ---> (Ax always have to be positive)



Example:

D(6, 1) E (-4, -3)
D(x1, y1) E (x2, y2)

1.) Find the slope

Y2 - Y1
_____
m =
X2 - X1


(-3) - (1)
______
m =
(-4) - (6)


m = -4/-10

m = 2/5

2.) Use point-slope form

y - y1 = m (x - x1)
y - (-3) = 2/5 [x - (-4)]
5 (y + 3) = [2/5 (x + 4)] 5
5y + 15 = 2x + 8

Ax + By + C = 0

2x - 5y - 7 = 0

P(13, -15) m = -7/2

y - y1 = m ( x - x1)

y - (-15) = -7/2 (x - 13)
2(y + 15) = [-7/2 (x - 13)]2
2y + 30 = -7x + 91

Ax + By + C = 0 (standard form)
7x + 2y - 61 = 0

Do exercise 15, 1 - 12

Sorry if this is posted a day late. I had some difficulties with my interent.
next post is jlavina

own opinion

oh my god, i hate graphing... i always get confuse with that.

Today's Lesson 10/15/07

We learned about: Equation of a straight line.
Today's notes:

1. y=mx+b --> m=slope, b=y-intercept
2. Ax+By+C=0 --> Standard form (in general set up so "A" is positive)
3. Ax+By=C


Examples:


m=3 b=2

y=mx+b
y=3x+2


m=-4 b=5

y=mx+b
y=4x+5


Assignment: Ex 13 - All questions but don't do # 13, 14 and 17

Next scribe is: preyes

today's lesson 10/10/07

We learned about.. Graphing lines using slopes.
Todays notes:

the equation is set up as y=mx+b
^ ^
m = slope intercept = b

1. Put the equation into y=mx+b
2. Plot the y intercept
3. Use the slop to find a 2nd point
4. Draw a line

eg. -2x+y=-3
y = 2x-3
y =2(0)-3
y=-3


Then plot it out on the graph.
and we received exercise 12, questions 1-9 + 11-15

Oh by the way, look at the comments to see who the next scribe is Laura.

Graph Using Intercepts

Notes for today's class....

Graph using intercepts
-needs 2 intercepts

Those 2 intercept are:
1) x- intercept
- the place where the line crosses the " x " axis
y= 0

2) y- intercept
- the place where the line crosses the " y " axis
x= 0

Ex. 1
2x+3y=6

x=0
a) 2x+3(0)=6
2x=6 (divide both side by 2)
x=3

y=0
b) 2(0)+3y=6
3y=6 (divide both side by 3)
y=2

after you solve those 2 intercepts you have to graph it...

(Sorry if I can't make the graph I don't know how to make a graph line here)

Ex.2
2/3x + 6y= 12

x= 0
a) 2/3x+6(0)=12
2/3x=12 (multiply by 3, both side)
x=36/2
x= 18

y= 0
b) 2/3(0)+6y=12
6y=12 (divide both side by 6)
y=2

after yolve graph those 2...

Ex.3
3x-5y=-15

x=0
a) 3x-5(0)=-15
3x=-15 (divide both side by 3)
x=-5

y=0
b) 3(0)-5y=-15
-5y=-15 (divide both side by -5)
y=3


(graph those 2)

assignment
Ex. 11 questions 1-9, 11-16

enjoy!!!!!!! :)
next scribe is... teara :)

GRAPHING LINES

A line can be represented by an equation in different ways:

1. Ax + By + C = 0
2. Ax + By = C
3. y = mx + b

Three Ways on how to graph an equation:
a. Table of values

x -1 0 1
y 3 1 -1


Solved for this equation: y=-2x+1
Just simply substitute the x variable above

If x = -1
y=-2(-1)+1
y=2+1
y=3


if x=0
y=-2(0)+1
y=0+1
y=1


if x =1
y=-2(1)+1
y=-2+1
y=-1


So (-1,3) (0,1)(1,-1) plot them in your graphing paper....,,


answer exercise #6 1-12,16-20 :>


raminalyn...............hi!!!!!!!!!!

Yesterday we have a new topic.....It's about slopes...It's not tricky butit's fun learning new stuff...Got two finish exersice no.7 the tricky part was no.3and 4....,have a nice long weekend and thank you for the greetings...
the next one that will subscribe is kim...,

Polynomial Test Results

Hello folks.
I finished marking the tests, and would like to let you all know that the class average on this test was 64%. Pretty good for the first pre-calculus test.
Congratulations to all on the test.

Mrs. Ingram

Reflection, again:

I dont know where my old one went -_-'' For some reason its not on here, but as i said before this unit was a easy to understand, although im pretty careless and then i have to do extra work by doing check on a few questions. Um, next unit seems more familiar to me than this one, so i may have better luck (y)! Good luck for everyone next unit!

Cheers,
Jenn (:

Review

I have learned about fractions, factoring and how to do long devision with variables.
It seems difficult but it is quite easy once you know what you're doing.

Reflection

I really understood all about the things we tackled in pre-cal and I think I will do better in this class that's all !(-.-)!

Important if you weren't here on friday (09/28/07)

just in case you weren't here today, the math test has been moved to MONDAY!! please be on time as mrs.ingram will close the door and you will not be able to write the test.

Reflection

I find pre-cal hard, but not as hard as what I expected. This course helps me to have more interest in math. I'm happy that i'm having fun in the class, because if i'm not, it would be boring, and it's gonna be hard for me to learn. I think the test is not gonna be that hard, and easy. Some lessons that we had were easy, but some were not. But i'll try to pass the test, and if i pass it, THANK GOD! Just kidding. But i'll do my test to pass it, and i know i will.
Good luck to all.

Reflection

So hmmm... Polynomials , easy stuff ヽ(´ー｀)ﾉ (you spend more time writing the equations than actually doing it...). It would take me most of the class to answer simple question because I would write the wrong equation from the board... Kinda sad... （ ´Д⊂ヽ Thanks to the people that helped me when I was on a pinch ⊂二二二（　＾ω＾）二⊃ XD. The one thing that I just need practice are those questions that looks like this: (34+343+34)(334+4+343)(44+43+444). Too much writing.... щ(ﾟДﾟщ).Anyways, this unit has been fun (cause you have to share answers tee-hee ( ﾟ ヮﾟ) ), hoping to ace the quiz tomorrow and stuff... Now to study.... Where's my notes... WHERE ARE THEY?! (ﾟДﾟ;≡;ﾟДﾟ)

reflection....

I think pre-cal is hard but if I try my best I can pass this course and also so far , pre-cal is not to hard because I think we're just reviewing what we did in grade 9 and also I do like algebra or anything like solving equation and what I hate most is problem solving thats why I take pre-cal instead of consumer. I'm excited for the quizz tomorrow but I hope it's easy hehhe...

GOOD LUCK:) TO OUR QUIZZ
(WE CAN DO IT!!!)

allan loves math *rollseyes

Well this pre-calculus course has been pretty funnn soofaaar... The work we do I pretty much get after bugging people 309452034578 times to help me LOL but either way i'm good. I know most of the basic things I need to know on this unit from gr. 9 and that helped me lots! I struggled with the dividing part and got confused but i got the hang of it after staring at my paper for hours and reading it over and over again LOL j/k AND reading pj's ownage of an example on this blog. The quiz that we are having tomorrow i hope i ace which i doubt but i'll try(y) i'm studying as of right now as i type this reflection of mine well not exactly study but look over yenno yenno.. Well hmm our new unit we started i'm ohkay with it , it's not that confusing as I learn it i hope it's doesn't get harder but i doubt that also. SOOOOO to all my fellow classs mates good luck to all on our quiz tomorrow and right now it's about 11:10pm soo i'm sleeping now... peace

So far, pre-cal has been easier that what i expected. Most of the things we do in class are reviews from grade 9. Things are pretty easy, but then there are times when i'd forget the formula's for things, or how to do some stuff. And there are times when i'd write the wrong answers for the basic things like adding and stuff, even though i know the actual answer. Overall, i think i will do well in this course, and hopefully manage to get a really high mark on the unit test.

Reflection

From what we've learned so far in class, I didn't have any major difficulties, just a few small problems like subtracting wrong and stuff. It also feels like somewhat of a review from last year because last year in grade 9 we learned some of these things such as polynomials. So everything we've learned about up until now isn't a very big deal, at least for me. So the test tomorrow I hope I won't blank out on any of the questions and hopefully it won't be completely difficult! Good luck to everyone !!

"Reflection"

Polynomials is pretty easy but only the multiply thing. I'm having trouble with my dividing part, and tomorrow is the test Im so nervous to got a low marked and I keep on thinking everything and it gives me headache. Well I hope i can answer it all correctly.... Well GOOD LUCK to all!!!!

>>reflection<<

0ur math test is t0morr0w s0 i/we better start reviewing 4 t0m0rr0w's test..its n0t that t0ugh th0ugh..but yeah..the review questions we answered last class did help me a l0t 4 t0m0rr0w's test.. polynomials,factoring etc. was 0ur last year t0pic..s0 there's n0thing 2 w0rry ab0ut. i h0pe i/we'll get a high mark 4 this test..s0 g0od luck guyz and girlz..

I'm ready...

Hello! Tomorrow we have to write the test... but i think i'll pass, because i understand and i know how to do it. LOL! i think this unit is so easy, like division by binomials, factoring difference of squares,ect. i think i can get higher than 95? good luck 2 everyone ! ^^

***reflection***

Mmmmm...... Pre-cal is a very hard subject and I'm struggling in it for about a month ago.... I had a couple of low scores from the previous tests and this coming test on Friday, makes me really worried... I hope I'll be able to pass on this one....I'll try my best and I will study real hard.... Good luck to myself and to all of you guys.....

Reflection

The unit is easy for me now. The only trouble that I had on was dividing, but with help I was able to understand. The rest like multiplying and factoring, was pretty easy once I understood it. I hope I do well on this test and good luck to everyone on Friday.

Reflection

This unit gave me a hard time at first, but when we did a lot of practice and I went over my mistakes, I understood better. Hopefully I get a good mark on this unit's test.

Unit Reflection...

Hmm.. well, i think this unit was pretty easy, except for the dividing.. got confused a couple of times.. but overall i think it was okay. and for the test...? i think i'll do well.. as long as i go over everything and dont blank out. so yeah.. thats about it. good luck guys! (:

Reflection =]

Ok, so the test for the polynomials unit is this Friday. I don't feel worried about it. Most of the stuff was pretty easy so it was almost like a review from grade 9. The hardest part was probably the dividing and I'm sure that a lot of people would agree. I think that I will do well on the test as long as I don't get some kind of mental-block or anything. Good luck to everyone! =]

Reflection

I haven't been here long, so there's not much to say about studying the unit. All I really have to say is that I'm fairly confident I'll do well on the test, as I've been able to handle everything we've done in class so far nicely.

REFLECTION

Studying this topic (polynomials,dividing ,factoring and etc.......) is not really hard as long as you know how the proper solution .Our test on friday, I' thInk will help me to know what are the things that i really know and dont about that topics.;>GOOD LUCK:>

Reflection.

This unit, polynomials and factoring, was pretty easy for me. I understood everything. The only thing I had trouble with at first was the long division of polynomials, but I get it now. I imagine the unit test on Friday won't be very difficult for me.

r e f l e c t i o n

i didn't have a pretty hard time at this unit. the lessons aren't that hard to understand.

i guess that's what we all expect since we're still starting the course.

i hope i don't get mantal-blocked on the test. :)

Monday, September 24, 2007

Analytic Geometry

plot pants A (5,4) and B (-1,-4)
find the distance between the pants.


exercise #4

question 1-9

14-20

have fun!!!!!! sorry if its incomplete^_^

This is William: My blogger is still in the making.

On Sept. 28th, THIS FRIDAY, there will be a unit test.

Study study study!

And, by this Thursday, everyone must create an account and post how you felt about this unit.

It doesnt matter if your the scribe or not. You still have to do it!

Factoring Difference of Squares

Multiply:
(x* - means X squared)

(x + 1)(x - 1) = x* - 1
(x + 2)(x - 2) = x* - 4
(x - 3)(x + 3) = x* - 9
(2x - 1)(2x + 1) = 4x* - 1

Difference of Squares

Example 1:

81y* - 4
(9y + 2)(9y - 2)

Example 2:

x* - 144
(x + 12)(x - 12)

Do exercise 10, questions 1 - 7, 19 & 20

-this is it, work's pretty easy, sorry if its unclear,
- next scribe is William San Diego.

Factor Using Grouping

Notes that was taken from the board.





2t*2+t-3



a=2 b=1 c=-3

a X c

2 X -3=-6 ---> what are factors that will add up to 'b' value

-2+3=1

-2X3=6



2t*2 + t -3



2t*2 -2t + 3t- 3

<------> <---->

2t(t-1) + 3(t-1) -----> brackets should be the same



(2t+3) (t-1)



Assignment: Exercise 9 Questions 1-8, 10,11,20

Sorry if you can't understand.
Next scribe is Praisia.
Sorry that's it's posted late didn't know who the next scribe was.

Good luck =)