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If f(x)= 5x + 40, what is f(x) when x = -5?

User Ikumen
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1 Answer

4 votes

Answer:

f(x) = 15

Explanation:

"If f(x)= 5x + 40, what is f(x) when x = -5?"

Substitute x for -5:

f(x) = 5x + 40

f(x) = 5(-5) + 40

f(x) = -25 + 40

f(x) = 15

User Gyoda
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