Today is the first day of Mrs. Dixon's Marking Period!

Mrs. Dixon told us a story about her granddaughter Mia. When she wanted a bunny from the prize table at the county fair (or something like that), she gave the man cute little eyes and her gave her the bunny. Little kids are funny!

The warm up is this:

1) 2x + x + (5/4) = (3/2)x + 1 - 2
2a) 3^2 * 3^4

3^8

2b) -2^0 2c) (-2)^0 2d) a^2 b^4

a^-4 b^6

The dashed line means divided by. I can't do much with wikis!

ANSWERS TO WARM UP!

1) Answer: 1 1/2 (one and a half)

Did you combine like terms first? ALWAYS combine like terms before solving a problem. This is how it's supposed to look:

2x + x + (5/4) = (3/2)x + 1 - 2
3x + (5/4) = (3/2)x + -1
4(3x) + 4(5/4) = 4((3/2)x) + 4(-1)
12x + 5 = 6x + -4
Solve

2a) Answer: 1/9

3^2 * 3^4 3^ (3+4) 3^6
------------- = -------------- = -------- = 3^ (6-8) = 3^-2 = 1/3^2 = 1/9
3^8 3^8 3^8

2b) Answer: -1

-2^0 = -1

-1 * 2^0 = -1 (proof, not required)


2c) Answer: 1

(-2)^0 = 1

2d) I bet you got stumped! I did! Answer: a^6

b^2

a^2 b^4 a^2 b^4
------------ = ------ * ------ = a^(2-(-1)) b^(4-6) = a^6 b^-2 = a^6 b^2
a^-4 b^6 a^-4 b^6

(2 minus negative 1)

Then we went over the Homework!

For #11-15, I bet you got y=3 for number 11. WRONG!

(0,3)

Remember direct variation?

Here are the rules:

1) The y-intercept is always (0,0)
2) Linear
3) Slope is k = y/x

y/x = 3/0 = undefined

The graph would look like this:

Graph

The equation would be x = 0.

We didn't have any work time in class because we ran out of time. Here is the Homework!

WS 720 lesson 8.3 # 6 - 10, 16 - 19
Lesson 8.4 # 40 - 42
lesson 8.5 # 9 - 12

Sorry is the wiki looks messed up. I tried to line everything up, but it didn't work.

TEST ON THURSDAY!!!! STUDY!!!!

NO SCHOOL ON FRIDAY!!!!!