Evaluating Functions

f(x) is the same thing as ______.

• y

• x

• input

• an equation

Given g(x) =
 4x - 7, find g(-9). 

• g(-9) = 29

• g(-9) = -43

Given g(x) = 4x - 7 and g(x) = 13, find x.

• g(-9) = 29

• x = 5

• g(-9) = -43

• x = 5/4

What is the domain?

• None of the answer choices

What is the range?

• [-3, 4]

• (-3, 4)

• (-3, 4]

• (-2, 3]

• [4, -3]

The set of all x-values used to graph a function are called the ____.

• Domain

• Range

• Relation

• Function

f(t) = −2t²+ 1
f(2) = ?

• 9

• 17

• −17

• −7

f(x) = −2x + 13

f(−4) = ?

• 21

• 5

• −8

• 7

Consider the function: g(x) = 4x − 1 For which value of x does g(x) = 19? (Hint: Determine which number can be substituted in for x to give you a solution of 19.)

• 39

• 41

• 5

• 38

f(x) = 4x + 5

f(4) = ?