1st-3rd Q Review

Solving Equations

100

3 + 4c = 15

3

200

Solve: s = 5  t = 8

6s + 2t

46

300

Simplilfy:

-7(2x + 3) =

-14x - 21

400

Simplify:

x + 5(6 + x)

6x + 30

500

12z + 4 = 2(5z + 8) - 12

0

Functions

100

Is this a function:

(2,3) (4,0) (6,3) (8,2)

Yes

200

State the domain:

(1,2) (3,4) (5,6)

D={1,3,5}

300

State the Range:

(7,8) (9,10) (11,12)

R = {8,10,12}

400

What is the name of the test to determine if a graph is a function?

Vertical Line Test

500

If the graph shown is a circle, is it a function?

No

Inequalities

100

True or False?

120/ d  > 40;  d = 3

False

200

Solve:

y + 7 < =  12

y <= 5

300

Solve:

4x > -36

x > -9

400

Find the error:

3x - 9 < 5(x + 10)

3x - 9 < 5x + 10

     -9 < 2x + 10

    -19 < 2x

       9.5 < x

The 5 wasn't distributed to the 10

500

Solve: 

10 + 4x > 3(x - 6)

x > -28

Data

100

Biased or unbiased?

To determine how many students bring a lunch from home, all students on one school bus are surveyed.

Biased...why?

200

Positive, Negative, or No correlation?

Size of your household and the water bill

Positive

300

Biased or unbiased?

To determine the quality of cell phones coming off an assembly line, the  manager chooses one cell phone every 20 mins and checks it.

Unbiased...why?

400

Positive, Negative, or No association?

As x decreases, y increases

Negative; going in opposite directions

500

True or False?

The median is the average.

False

Random

100

Find the slope.

(4,5) (-3,19)

-2

200

Solve:

-6 + 4 - (-8)

6

300

You have 3 green, 4 blue, 7 purple, and a red marble in a bag.  If you randomly reach in and pull out 1 marble...P(Green or Purple)?

10/15

400

All of the letters in the alphabet are in a bag.  If you reach in randomly...P(vowel)?

5/26

500

Write this in expanded form:

4⁵

4*4*4*4*4