Identifying Functions and Making Function Tables

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Is the table above a function?

• This is a Function

• This is Not a Function

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

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

Given f(x) =
2x² + 5x - 17, find f(-1). 

• f(-1) = -20

• f(-1) = -24

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

• x = -5

• x = 5

• x = -50

• x = 30

What is f(1)?

• 1

• 5

• 0

• 4

What is f(8)? 

• 8

• 0

• 3

• -2

Which of the following is a function?

• Mapping A

• Mapping B

• Table C

• Table D

Is the table above a function?

• This IS a Function

• This is NOT a Function

• This is a linear function

• This is a toaster oven

Is this number mapping a function?

• Function

• Not a Function

• Venn Diagram

• T - Table