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If f(x)= -x+7 what is f(15)?
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2 votes
If f(x)= -x+7 what is f(15)?

User Abe Fehr
by
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2 Answers

6 votes
F(x)=-x+7, and by saying “f(15)”, your saying x=15, since f(x) turns into f(15). So just replace all x’s with 15.

F(15)=-15+7
F(15)=-8

So -8 is the answer:)
User Seleta
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5.8k points
4 votes
x = 15

Substitute that to equation

-(15) + 7

Answer:
f(x) = -8
User Mjturner
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6.5k points
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