Function or Not?

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 this mapping a function or not a function? 

• Function
• Not a Function

Is this set of ordered pairs 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 set of ordered pairs a function or not a function? 

• Function
• Not a Function 

Is this graph a function or not a function?

• Function

• Not a Function

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Is this graph a function or not a function?

• Function

• Not a Function