3/26 Functions

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

Which of the graphs is NOT a function?

• Graph A
• Graph B
• Graph C
• Graph D

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

• Yes
• No

Is the relationship in the table a function or not a function?

• Function
• Not a Function

Is the relationship in the table a function? 

• Yes
• No

Is this mapping a function or not a function?

• Function
• Not a Function

Which image is NOT the graph of a function?

• 
• 
• 
• 

• Function
• Not a Function