Identifying Functions of Tables Graph and Mapping

Is this a function or not a function?

• Function

• Not a Function

Which set of ordered pairs is a function?

• <(p>{(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)}

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

Is this graph a function or not a function? 

• Function

• Not a Function

• Yes
• No

How do you determine if a relation is a function? 

• The vertical line test crosses more than one point on the graph.

• The same y-values are mapped from the same x-values.

• The vertical line test crosses only one point on the graph.

• Each input is related to more than one output.

Is this is a function or not a function?

• Function

• Not a Function

Which of these set of coordinates represent a function?

• A

• B

• C

• D

Does this mapping diagram represent a function?

• No, because an input value goes to multiple output values

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

Does the table represent a function?

• Yes

• No