honkejfnwk
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  • 22-07-2020
  • SAT
contestada

For the function f (x) = (-6x - 2)^2 , what is f (-7)? a. -40 b. 40 c. 80 d. 1600 e. 1936

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dreaagd
dreaagd dreaagd
  • 23-07-2020

Answer:

1600

Explanation:

If the equation starts with f(-7), then we have to replace the x in the equation to -7.

f(-7) = (-6 (-7) - 2)^2

Next, we multiply -6 and -7 to get a positive 42, since a negative number multiplied by a negative number is a positive number. Then, we subtract 2 from 42 to get 40. Finally, we square 40 by 2 (40 * 40) to get our answer: 1600!

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