Staar Function Notation

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.

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CCSS.8.F.A.1

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

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CCSS.8.F.A.1

Is this a function?

• Function
• Not a Function

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Is this a function?

• Fv

• Nem Fv

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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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CCSS.8.F.A.1

• 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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Is this mapping 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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CCSS.8.F.A.1

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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CCSS.8.F.A.1

CCSS.HSF.IF.A.1