Functions

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

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.

• Function

• Not a Function

• Function

• Not a Function

• Function

• Not a Function

Is this mapping a function or not a function? 

• Function

• Not a Function

Is this table a function or not a function? 

• Function

• Not a Function

Is this table a function or not a function? 

• Function

• Not a Function

Is this mapping a function or not a function? 

• Function

• Not a Function 

Is this table a function or not a function? 

• Function

• Not a Function