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17 December, 17:43

Find f (-7) if f (x) = 2x + 8.

A. - 6 B. 2 C. 3 D. 22

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Answers (2)
  1. 17 December, 20:37
    0
    f (7) = -6

    Step-by-step explanation:

    f (-7) = 2 (-7) + 8

    f (-7) = - 14 + 8

    f (-7) = - 6
  2. 17 December, 21:28
    0
    To find f (-7), just plug - 7 in for all x

    2 (-7) + 8

    -14 + 8

    -6 is the answer!
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