Identifying Function

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

All of the y values are called what?

• Domain

• Outputs

• Relation

• Function

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.

Which of these sets is not a function?

• { (2,3) , (3,5) , (4,9) }

• { (2,3) , (2,5) , (4, 9) }

• { (2,3) , (3,3) , (4,9) }

Does this mapping represent a function?

• Yes

• No

Do these ordered pairs represent a function?

• Yes

• No

Does this mapping represent a function?

• Yes

• No

Do these ordered pairs represent a function?

• Yes

• No

Does the table represent a function?

• Yes

• No

Does this mapping represent a function?

• Yes

• No