Definition of a Function

Does this represent a function?

• Yes

• No

• A

• B

• C

• D

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

Which of these tables represent a function?

• A

• B

• C

• D

Does this table represent a function?

• Yes

• No

Does this represent a function?

• Yes

• No

• A

• B

• C

• D

• Function
• Not a Function

• It is a function because each x has only one y.
• It's not a function because an x has multiple y's.
• It's not a function because a y has multiple x's.
• It is a function because each y has only one x.

Is the graph pictured a function?

• Yes

• No