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

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• 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 mapping a function or not a function? 

• Function
• Not a Function 

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Is this graph a function or not a function? 

• Function
• Not a Function

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Is this table a function or not a function? 

• Function
• Not a Function

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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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Which ordered pair could you add to the following list of points to create a function?  (3, 5) (4, 9) (2, 5) 

• (3, 7)
• (4, 1) 
• (1, 9)
• (2, 6)

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Is this graph a function or not a function? 

• Function 
• Not a Function

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Which graph does NOT pass the vertical line test?

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

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