If f(x) = 5x + 40, what is f(x) when x = –5? answer 1. -9 2. -8 3. 7 4. 15

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Paul Fleming asked Dec 5, 2022

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40 votes

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

answer
1. -9
2. -8
3. 7
4. 15

Mathematics
high-school

Paul Fleming asked Dec 5, 2022

by Paul Fleming

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2 Answers

13 votes

f(x) = 5x + 40

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

= 15

Ans: 15

Li Zheng answered Dec 7, 2022

by Li Zheng

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13 votes

Answer:

option 4

Explanation:

f(x) = 5x + 40

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

= - 25 + 40

= 15

Amir Naor answered Dec 12, 2022

by Amir Naor

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