Identifying functions

Front

Back

Function

Front

The following is not a function because...

Back

x = 10 and x = 40 has two values each.

Front

Which set of ordered pairs is a function? Options:

{(9,5), (10,5), (9,-5), (10,-5)}

,

{(3,4), (4,-3), (7,4), (3, 8)}

,

{(6,-5), (7, -3), (8, -1), (9, 1)}

,

{(2, -2), (5, 9), (5, -7), (1, 4)}

Back

{(6,-5), (7, -3), (8, -1), (9, 1)}

Front

Does this mapping diagram represent a function?

Back

Yes, because each input goes to one and only one output

Front

Back

No

Front

Is this graph a function or not a function? Options: Function, Not a Function

Back

Function

Front

Back

Not a Function

Front

How do you use the vertical line test?

Back

Draw vertical lines through your graph. If any of the vertical lines you draw intersects the graph more than once then the graph is not the graph of a function.

Front

Is this mapping a function or not a function?

Back

Not a Function; the x's repeat

Front

Is this graph a function or not a function? Options: Function, Not a Function

Back

Function