Functions Practice

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 

.

• Function
• Not a Function

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

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each y-value has only one x-value paired with it.

• No, because the x-value 11 has two y-values pair with it.
• No, because each y-value has only one x-value paired with it.

Is this graph a function or not a function? 

• Function
• Not a Function

Is this table a function or not a function? 

• Function
• Not a Function

Which of the following is a function?

• 
• 
• 
• 

Which is a function?

• W

• X

• Y

• Z