Identify Functions (Vertical Line Test)

Which set of values is a function?

• (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)

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• Function

• Not a Function

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• Function
• Not a Function

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Is this set of ordered pairs a function or not a function? 

• Function

• Not a Function 

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Is this mapping a function or not a function? 

• Function

• Not a Function 

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Is this relation a function?

• Function

• Not a function

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Is this graph a function or not a function? 

• Function 

• Not a Function 

Is this table a function or not a function? 

• Function

• Not a Function

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• Function
• Not a Function

Which graph is not a function?

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