NCVPS 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, known as the domain.

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CCSS.8.F.A.1

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What does it mean to evaluate a function?

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To evaluate a function means to calculate the output value of the function for a specific input value.

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CCSS.HSF.IF.A.2

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f(3) = -2(3) + 10 = 4.

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CCSS.HSF.IF.A.2

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What is the formula for the function g(x) = 10 - 3x?

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This is a linear function where the slope is -3 and the y-intercept is 10.

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CCSS.8.EE.B.6

CCSS.8.F.A.3

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g(5) = 10 - 3(5) = -5.

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CCSS.HSF.IF.A.2

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f(4) = 4(4) + 5 = 21.

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CCSS.HSF.IF.A.2

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g(-5) = 5 - 6(-5) = 35.

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CCSS.HSF.IF.A.2

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f(-5) = -5 + 3 = -2.

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CCSS.HSF.IF.A.2

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The slope is -2, indicating the function decreases as x increases.

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CCSS.8.EE.B.5

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The y-intercept is 10, which is the value of g(0).

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CCSS.8.EE.B.6

CCSS.8.F.A.3