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16 December, 09:00

If f (x) = 5x - 12, what is f (2) ?

A. 2

B. 10

C. - 22

D. - 2

+2
Answers (2)
  1. 16 December, 09:04
    0
    F (x) = 5x - 12

    Let's plug in 2.

    f (2) = 5 (2) - 12

    Let's simplify.

    f (2) = 10 - 12

    f (2) = - 2
  2. 16 December, 09:13
    0
    I don't really know for sure if I did it right, I always doubt myself ...

    Anyway, I substituted (2) into the equation as x.

    5*2-12

    It equaled - 2.

    I think it's D.
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