Must show all work.

Must provide explanation of answer to prove it is correct

Name:

Directions: Show all work in the spaces provided. Place your

answers on the lines provided.

1. In which of the following equations is y a function of x.:

a). x + 2y = -4

b). x – y = 2

Ans.

2. Given f(x) = 4x – 8x+9, find f(-1).

Ans.

3. Given f(x) =

(3x + 4 x S2

x² + 1 x 2

, find f(3)

.

Ans.

4. Given f(x) = 3x-1 , find f(x – 1) – f(2)

Ans.

5. Find the domain of the function :

f(x)

5x

x² – 7x + 12

Ans.