Defining Function Relationships

• 1

• 2

• 3

• 4

• 1

• 2

• 3

• 4

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CCSS.8.F.A.1

• (-4,-1) because then -4 would have two outputs (2 and 1)

• (1, - 4) because there is no x = 1

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CCSS.8.F.A.1

• A

• B

• C

• D

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CCSS.HSF.IF.A.2

• 6

• 2

• -2

• -4

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CCSS.HSF.IF.A.2

Is the following graph a function? Explain.

• Yes, because no x-value repeats.

• Yes, because they are individual dots.

• No, because the x repeats.

• No, because it is not a line.

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CCSS.8.F.A.1

What is the definition of a 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

Is the relation a function? Why?

• Yes, because the x-value 11 has two y-values paired 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 paired with it.

• No, because each x-value has only one y-value paired with it.

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CCSS.8.F.A.1

Is this mapping a function or not a function? 

• Function

• Not a Function 

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CCSS.8.F.A.1

Is this table a function or not a function? 

• Function

• Not a Function

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CCSS.8.F.A.1