Evaluating Functions

• 106

• 16

• 26

• 94

• 9

• 13

• 21

• -9

• -128

• 64

• 64

• 128

• 0

• 5

• 1

• 60

• 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

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

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