Functions Review

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.

Is the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}

• Yes
• No

Which relation is NOT a function?

• {(1,-5), (3,1), (-5,4), (4,-2)}
• {(2,7), (3,7), (4,7), (5,8)}
• {(1,-5), (-1,6), (1,5), (6,-3)}
• {(3,-2), (5,-6), (7,7), (8,8)}

Is this table a function or not a function? 

• Function
• Not a Function

• Function
• Not a Function

Is this graph a function or not a function? 

• Function
• Not a Function

You can identify a function from a graph by using the.....

• Horizontal Line Test
• Eye Test
• Vertical Line Test
• Diagonal Line Test

Is this function linear or nonlinear?

• Linear

• Nonlinear

Is the function represented by this graph linear or nonlinear?

• Linear

• Nonlinear

• Linear

• Nonlinear