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

User Ahofmann
by
4.2k points

1 Answer

10 votes

Answer:

15

Explanation:

When you are evaluating a function for a particular value of the variable, put that value everywhere you see the variable. Then simplify.

f(x) = 5x +40

When x = -5, this becomes ...

f(-5) = 5(-5) +40 = -25 +40

f(-5) = 15

User Guillaume Morin
by
4.6k points
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