Question 1

State whether the ordered pairs shown in the table are modeled exactly by the linear equation.

y= -3/2x - 11/2

x -9 . -7 , -5

y 8 , 5 , 2

Are the ordered pairs modeled exactly by the linearequation?

Yes or No

Question 2

The number of email users E in millions x years after 2006 can be modeled by the formula E(x)equals=133x+134.

(a) How many users were there in 2011?

(b) What does the number 134 indicate in theformula?

(c) What does the number 133 indicate in theformula? (a) There were _______ million email users in 2011. (Type an integer or adecimal.)

(b) Choose the correct answer below.

A. The number of years required for the number of millions of users to increase by x

B. The number of years until the number of millions of users doubles

C. The number of millions of users gained in each year

D. The number of millions of users there were in the year 2006

(c) Choose the correct answer below.

A. The number of years until the number of millions of users doubles

B. The number of millions of users gained in each year

C. The number of millions of years until the given number of users is reached

D. The number of millions of users in a certain year

Question 3

Use the graph of f to evaluate the expressions below.

f(-3) and f(0)

f(-3) =

f(0) =

The graph for this question is in the attached files

Question 4

Ifpossible, identify the quadrant in which each point is located.

What quadrant does the point -4/7 , 1/9 lie in?

IV II III I None

What quadrant does the point 1/9 , -4/7 lie in?

IV II III I None