Is It a Function

• Function
• Not a Function

• Function
• Not a 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.

Is this set of ordered pairs a function and how can you tell?

• Yes its a function because no y values repeat

• No it's not a function because there are negative numbers

• No it isn't a function because an x value repeats but has different y values

Using the vertical line test. Is this a function?

• Yes

• No

Using the vertical line test. Is this a function?

• Yes

• No

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

Is this mapping a function or not a function? 

• Function

• Not a Function 

• Function
• Not a Function

• Function

• Not a function