1) Find the domain of the function. (Enter your answer using interval notation.)

f(t) =

t+9

5) Use

f(x) = 4x 3

and

g(x) = 2 x²

to evaluate the expression.

6) Evaluate the function at the indicated values. (If an answer is undefined, enter UNDEFINED.)

f(x) =x²4;

f(3),f(3),f(0),f

1

2

f(3)	=
f(3)	=
f(0)	=
f 1 2	=

Find

f+g,

fg,

fg,

and

f/g

and their domains.

f(x) =x, g(x) =5x

Find

(f+g)(x).

Find the domain of

(f+g)(x).

(Enter your answer using interval notation.)

Find

(fg)(x).

Find the domain of

(fg)(x).

(Enter your answer using interval notation.)

Find

(fg)(x).

Find the domain of

(fg)(x).

(Enter your answer using interval notation.)

Find

f

g

(x).

Find the domain of

f

g

(x).

(Enter your answer using interval notation.)

12) Determine whether the given function is linear. If the function is linear, express the function in the form

f(x) = ax + b.

(If the function is not linear, enter NOT LINEAR.)

f(x) =

5x 6

x