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30 July, 19:23

Find f (-4) if f (x) = 3x - 6.

A 6

B - 6

C 18

D - 18

+2
Answers (2)
  1. 30 July, 19:26
    0
    f (-4) = - 18

    Step-by-step explanation:

    f (-4) means x = - 4

    So Plug in x = - 4 into f (x) = 3x - 6

    f (-4) = 3 (-4) - 6

    = - 12 - 6

    = - 18

    So

    f (-4) = - 18
  2. 30 July, 19:29
    0
    D. - 18

    Step-by-step explanation:

    f (-4) = 3 (-4) - 6 Substitute - 4 for x

    f (-4) = -12-6 Multiply 3 and - 4

    f (-4) = -18 Subtract 6 from - 12
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