Functions and Relations

• Yes
• No

• Yes
• No

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.

What is the definition of a function?

• Has inputs and outputs

• Inputs have different outputs every time

• x-values and

  y-values

• Every input has only one output

The relation ​ (a)   a function.

• is not

• is

ANY set of ordered pairs is called a​ (a)  

• relation

• function

• ordered pair

• table

• mapping diagram

• graph

• input

• output

• ordered pairs

Is this is a function or not a function?

• Function

• Not a Function

Is this a function or not a function?

• Function

• Not a Function

Does the table represent a function?

• Yes

• No