Evaluating Functions

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What is a function?

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A function is a relation that assigns exactly one output for each input from a set of inputs.

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CCSS.8.F.A.1

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What are the inputs of a function called?

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Inputs are called the domain of the function.

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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What are the outputs of a function called?

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Outputs are called the range of the function.

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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How do you evaluate a function?

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To evaluate a function, substitute the input value into the function's equation.

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CCSS.HSF.IF.A.2

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11

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CCSS.HSF.IF.A.2

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0

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CCSS.HSF.IF.A.2

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10

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CCSS.HSF.IF.A.2

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3

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CCSS.HSF.IF.A.2

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What is the range of a function?

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The range is the set of all possible output values of a function.

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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What does it mean for a function to be undefined?

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A function is undefined when the input value does not produce a valid output, such as division by zero.

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1