### Scribe Post for March 25, 2010

I'm the scribe for today. This is actually my fourth scibe, and I'm not sure if everyone's done their third scribe, so I'll just tell Mr.B to pick someone later on.

Well anyways, today in math class we talked more about polynomials.

We also talked about the GCF, or Greatest Common Factor.

It is the highest number that divides exactly in two or more numbers.

Here are some examples:

Here are the questions we had to solve:

1. 16x + 40 = 8 (2x + 5)

2. 15n - 24 = 3 (5n - 8)

3. -a^4 + 3a^3 - 2a^2 = a^2 (-a^2 + 3a - 2)

4. 12x - 9x^2 - 3x^2 - 6x^4 = 3x (4 - 3x - x^2 - 2x^3)

5. b^5 - 3b^4 = b^4 (b - 3)

6. x^2 y^2 z - x^3 y^2 z^2 + x^4 y^2 = x^2 y^2 (z - xy^2 + x^2)

7. 14x^3 - 21x^2 + 28x^4 - 35x^3 = 7x^2 (2x - 3 + 4x^2 - 5x)

8. 3b^4 - 6b^5 - 3b^4 (1 - 2b)

After that, Mr.B told us to solve these two questions:

1. a (a + 7) + 6 (a + 7)

2. (a + 6) (a + 7)

The answers ended up the same, which was a^2 + 13a + 42.

The last thing we did was the easiest of all:

1. 6t (3t - 1) + 9 (3t - 1) = (3t - 1) (6t + 9)

2. 4z (5 + z) - 3 (5 + z) = (5 + z) (4z - 3)

3. 6 (2a + 3) - 3a (2a + 3) + 2a^2 (2a + 3) = (2a + 3) (6 - 3a + 2a^2)

Mr.B also reminded us to go to http://www.mathplayground.com/ to play games over the break.

Well that's all for the scribe. We didn't do much, and sorry it's super short.

Like I said earlier, Mr.B will pick the next scribe (;

Reminders:

-FORMAL DAY!

-MOVIE DAY!

-SPRING DANCE!

Also, advance HAPPY SPRING BREAK ;D

Hi Everyone, today was one of those days where we need to do work. Today we make our foldable. In the foldable you should have the following headings:

- LINEAR RELATIONS (as a title)
- KEY WORDS(first flap)
- INTERPOLATE(second flap)
- EXTRAPOLATE(third flap)
- 6.1 MATH LINK(fourth flap)
- 6.2 MATH LINK(fifth flap)
- 6.3 MATH LINK(sixth flap)
- WRAP IT UP(seventh flap)

this:

In "Keywords" you should have the following key terms :

- Linear Relation
- Linear Equation
- Numerical Coefficient
- Variables
- Constant
- Interpolate
- Exterpolate

By now you should have define the key terms.

**HOMEWORK**:

-Math link Introduction

-Math link 6.1

-Create the Chapter 6 foldable, you ONLY need to make the key words part (linear relation, linear equation, interpolate, and extrapolate) and the side part where is says Interpolation and Extrapolation.

-Read through the beginning of chapter 6, and do CYU 2 and 3, Practise 4 or 5 or 6, then 7 or 8 or 9, Apply 2 of 11-14, and ALL of Extend.

-Workbook 6.1

For the next scribe I pick.... MELANIE

### Scribe Post for March 23, 2010

The linear equation for that is **s=2n-1. **After that we graphed the numbers.

OK, on to homework! (AGGHH)

There is a lot of homework, but don't worry, it's not due until the Monday AFTER Spring Break! That's April 5Th!

**HOMEWORK**: (In this order)

-Math link Introduction

-Math link 6.1

-Create the Chapter 6 foldable, you ONLY need to make the key words part (linear relation, linear equation, interpolate, and extrapolate) and the side part where is says Interpolation and Extrapolation.

-Read through the beginning of chapter 6, and do CYU 2 and 3, Practise 4 or 5 or 6, then 7 or 8 or 9, Apply 2 of 11-14, and ALL of Extend.

-Workbook 6.1

P.S. make sure you start bringing graph paper to class.

COMMENT, I like comments, they make me feel special, so please comment!

For the next scribe I pick.... Christian!

### Scribe Post for March 22, 2010

### Scribe Post for Friday March 19

A = 5y (7y - 4) multiply 5y by 7y and -4

5y (7y) = 35y^2 (y^2 means y squared)

5y (-4) = -20y

= 35y^2 - 20y

The area of the figure is 35y^2 - 20y square units. « simple sentence answer20. Apply the distributive property to simplify 2x (x-4) - 3x (x - 4).

2x (x-4) -3x (x-4)

=2x^2 - 8x - 3x^2 + 12x remember that it's -3x (x-4). Multiply 2x(x-4) and -3x (x-4)

=2x^2 - 3x^2 - 8x + 12x then you combine like terms

=-x^2 + 4x

21. A pool table is twice as long as it is wide. If the area of the pool table is 2.88m^2, what are the dimensions of the table?

I find it helpful to draw a diagramA = lw

2.88 = 2w(w)

2.88 = 2w^2

2.88/2 = 2w^2/2

1.44 = w^2

then you find the square root

1.2 = w

The length is 2 times the width

l = 2w The dimensions are length = 2.4m and width = 1.2m.

l = 2 (1.2)

l = 2.4

We also went over these two questions.

(x + 5)^2 = (x +5) (x+5)

= x^2 +5x + 5x +25

= x^2 +10x + 25

2. 3(x+2)^2 = 3 (x+2) (x + 2)

= (3x + 6) (x+2)

= 3x^2 + 6x + 6x + 12

= 3x^2 + 12x + 12

Homework:

Get ready Chapter 6

go to www.mathplayground.com and play "zogs"

Well, that's all for my scribe. If I missed anything, please let me know. PLEASE COMMENT! (also, I have no idea who hasn't done a scribe yet, so if you haven't, YOU'RE NEXT :P) Okay, bye.

### Scribe Post for March 16, 2010

How to prepare for Thursday's Test.

Do Chapter 7 Review and Test.

Be caught up with your homework, it'll show on your test.

Do the questions that you don't exactly understand and tell Backe.

Okay, in class we went over question 10.

A square is inscribed in a circle with radius r as shown. What is the ratio of the area of the square to the area of the circle?

Okay, I can't really help you with this question because I hardly understand it at all. I didn't want to copy the answers, and pretend like I knew it. If you don't understand either, I highly recommend that you visit Backe, as I will tomorrow. But don't worry, I'll get back to this question :/

Also remember that these are due shortly :

Chapter 5 Mathlinks, Foldable, etc.

Chapter 7 Wrap it Up.

Make sure your done !

### March 11 Scribe

Here are other things that are due:

Tuesday- All extra practise and all workbook for both chapter 5 and 7.

Friday- Stash it.

In your stash it there should be:

- Chapter 5 stuff that was originally due before
- Chapter 7 text book mathlinks and wrap it up
- 2 or 3 tests signed

Okay I think that I am about done so if I made any mistakes just comment.

### Scribe Post for March 10,2010

If you didn't get that, we used division to figure out the missing polynomials in the multiplication statement. So in order to do that you divide the answer(6x-8x) to the first statement (2x) in order to get the answer (3x-4)

**Homework**

**STASH ITS**

Hey 9-05! Today in math class, we didn't do much but Mr.B gave us an overview of what were going to learn on the the next unit, 7.6 (SIMPLIFYING POLYNOMIALS WITH POWER) and sometime this week were also going to learn how to

**devide polynomials or factoring polynomials.**

He also gave us examples:

* Do the exponent.

* Then the binomial multiplied by binomial rule applies(First Outside Inside Last) also known as

**Distributive Property.**

**AN OVERVIEW OF DEVIDING POLYNOMIALS:**

In this problem there are common factor in the numerator(top) and denominator(bottom). One way of solving it is I can seperate Division into two fraction. For more details just wait till the teacher talks about it in class.

Today we also talked about the homework that needs to be done.

Homework that needs to be done:

7.1 and 7.2 Workbook

7.1 and 7.2 Extra Practice

7.1 and 7.2 Text Book

7-3 Exercise

7-4 Exercise

Daffinition Decoder

Journal.

Note:

We Hand in our stash it with chapter 7

Soon we will have our very first pi day(Yaaay), ARE YOU EXCITED? well before I end this scribe let me tell you a short summary about what pi day is. Pi day is when we celebrate the number 3.1459........ and so on, on march 14 (03/14). Pi is a Greek letter is for the ratio of the circumference of a circle to its diameter. the symbol for pi was first used in 1706 by some guy named William Jones.... Well that's it for now. Sorry if this scribe is boring.

Well, I hope that there's nothing more to talked about, if i missed something

JUST LEAVE A COMMENT !

I choose: