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3 years ago

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

Mathematics

2 answers:

nadya68 [22]3 years ago

7 0

Answer:

$15$

Step-by-step explanation:

f(x) = 5x + 40

If x = -5, that means that f(-5)

So you need to substitute the number -5 for the variable x in the equation.

5x + 40

Substitute:

5(-5) + 40

5 * -5 = -25

-25 + 40

Mumz [18]3 years ago

6 0

15, step by step: 5(-5)+40= f(x) [ ur plugging in x ] so 5(-5) is -25 now u have -25+40 u do the math or do it on a calculator and u get 15

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