Reg 4/5 Function or Not a Function

Is this mapping a function or not a function? 

• Function
• Not a Function 

Is this a function? Explain.

• Yes; it passes the horizontal line test.
• No; it is not a straight line.
• Yes; it passes the vertical line test.
• No; there is a line connecting the dots.

• Function
• Not a Function

• Function
• Not a Function

.

• Function
• Not a Function

.

• Function
• Not a Function

Is this mapping a function or not a function? 

• Function
• Not a Function

Is this graph 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 

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4