Defining a Function

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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CCSS.8.F.A.1

• a function, because Feb has two outputs, 28 and 29

• a function, because two inputs, Jan and Mar, result in the output 31

• not a function, because Feb has two outputs, 28 and 29

• not a function, because two inputs, Jan and Mar, result in the output 31

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CCSS.8.F.A.1

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CCSS.8.F.A.1

• Marcel is correct because the lines are not connected

• Marcel is incorrect because 2 has two outputs

• Marcel is correct because he is smart

• (-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

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CCSS.HSF.IF.A.2

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If f(x) = 4x + 5 , what is the value of f(-3)?

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CCSS.HSF.IF.A.2

• 54

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• -18

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CCSS.HSF.IF.A.2