Review on Evaluating Functions

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

• Let x = 2

• Let y = 2

Tags

CCSS.HSF.IF.A.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

Tags

CCSS.HSF.IF.A.2

If f(x) = 2x + 1, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

Tags

CCSS.HSF.IF.A.2

For what value of x does f(x) = -2?

• 0

• -5

• 3

• -3

Tags

CCSS.HSF.IF.A.2

For what value of x does f(x) = -5?

• 0

• -2

• 3

• -3

Tags

CCSS.HSF.IF.A.2

What is x if
f(x) = -2?

• 4

• 0

• 3

• 8

Tags

CCSS.HSF.IF.A.2

What is the value of x when f(x) = 16?

• x = 4 only

• x = 4 and x = 8

• x = 16

• Not on the graph

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Evaluate f(33)

• 33

• 11

• 10

• 8

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Evaluate for f(4)

• -3

• 0

• 4

• 7

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Evaluate for f(1)

• 0

• -3

• 3

• 2