Function or Not?

Is this mapping a function or not a function? 

• Function
• Not a Function

Is this mapping diagram a function or not a function?

• Function

• Not a Function

Is this graph pictured a function?

• Yes

• No

Is this table a function or not a function?

• Function

• Not a Function

Is this graph a function or not a function?

• Function

• Not a Function

Is this graph a function or not a function?

• Function

• Not a Function

Is this graph a function or not a function?

• Function

• Not a Function

Is this mapping diagram 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.

• Function
• Not a Function

• Function
• Not a Function