If f(x) = -8 - 5x, what is f(-4)

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Gilbert Le Blanc asked Aug 20, 2022

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If f(x) = -8 - 5x, what is f(-4)

Mathematics
high-school

Gilbert Le Blanc asked Aug 20, 2022

by Gilbert Le Blanc

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12 votes

f(x)=-8-5x

$\\ \rm\longmapsto f(-4)$

Put -4 inplace of x

$\\ \rm\longmapsto -8-5(-4)$

$\\ \rm\longmapsto -8+20$

$\\ \rm\longmapsto 12$

Seyed Abbas answered Aug 23, 2022

by Seyed Abbas

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11 votes

Answer:

f(- 4) = 12

Explanation:

To evaluate f(- 4) substitute x = - 4 into f(x) , that is

f(- 4) = - 8 - 5(- 4) = - 8 + 20 = 12

Mushy answered Aug 26, 2022

by Mushy

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