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

1 Answer

4 votes

All we need to do is substitute and solve:

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

f(-5) = -25 + 40

f(-5) = 15

Best of Luck!

User Aleksander Kmetec
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