saucyjojo8958 saucyjojo8958

24-09-2020
Mathematics

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Let f(x) = 5(x - 21). What is the value of f(-7)?

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jimrgrant1 jimrgrant1

24-09-2020

Answer:

f(- 7) = - 140

Step-by-step explanation:

To evaluate f(- 7), substitute x = - 7 into f(x), that is

f(- 7) = 5(- 7 - 21 ) = 5(- 28) = - 140

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