Evaluating Functions Worksheet

f(x) = 4x + 5

f(4) = ?

f(x) = x² − 5x
f(4) = ?

• −4

• 126

• 24

• 84

f(t) = −2t² + 1 f(−3) = ?

• 19

• 37

• −17

• −11

f(t) = −2t²+ 1
f(2) = ?

• 9

• 17

• −17

• −7

g(x) = 5 − 6x g(−5) = ?

f(x) = 3x² − 11
f(−5) = ?

f(x) = −2x − 12 f(−5) = ?

• −22

• −2

• −19

• −5

f(x) = −2x + 13 f(10) = ?

• −7

• 1

• −8

• 7

f(x) = −2x + 13 f(−4) = ?

• 21

• 5

• −8

• 7

Consider the function: f(x) = 2x + 2

For which value of x does f(x) = 2?

(Hint: Determine which value can be substituted in for x to get a solution of 2.)

• 6

• −8

• 10

• 0