Functions Evaluating Functions

• 7

• -11

• -7

• 11

• 84

• 92

• 116

• 64

• f(-2) = -1

• f(-2) = -9

• f(-2) = 9

• f(-2) = 0

Evaluate r(3)

• r(3) = 16

• r(3) = 12

• r(3) = 13

• r(3) = 0

Let g(x)=9x+24, find g(3).

• 3

• 33

• 51

• -2.66

Evaluate f(x) = x² for f(-8)

• 64

• -64

• -16

• 16

How would you write y = 2x - 3 in function notation?

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

If f(x) = 2x + 1, what would be your first step to find f(1)?

• Plug a 1 in for all the x's

• Set the function equal to 1

• Only plug a 1 into the left side

• Only plug a 1 into the right side

Evaluate f(-2) if f(x) = x + 3

• -1

• 1

• 5

• -5

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5

• x = 5

• x = -50

• x = 30