Evaluating Functions F(x)

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

f(t) = −2t² + 1
f(−3) = ?

• 19

• 37

• −17

• −11

f(t) = −2t²+ 1
f(2) = ?

• 9

• 17

• −17

• −7

f(x) = 3x² − 11
f(−5) = ?

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

Consider the function: f(x) = x + 3

For which value of x does f(x) = −5?

(Hint: Find which x can be substituted into the function that gives an answer of -5.)

• −2

• −1

• −8

• 7

Consider the function: f(x) = −4x − 10

Find the value of x that makes f(x) = 10.

(Hint: Find which value can be substituted in for x that would give you an answer of 10.)

• −5

• 5

• −50

• 30

If f(x)=6x²-4,
what is f(-1)?

• -2

• 13

• 2

• 0