Is it a function?

Is this mapping 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

.

• Function
• Not a Function

• Function
• Not a Function

Is the relation a function?{(1,5),(1,7),(3,9),(4,11)}

• Yes
• No

Which set of values is a function?

• (9,5) (10,5) (9,-5)

• (3,4) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1)

• Function
• Not a Function

• Function
• Not a Function

Is this graph a function or not a function? 

• Function 
• Not a Function