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18 January, 19:17

Use the given function f (x) = (x-4) + 8x to solve f (-2)

A. 18

B. 14

C. 22

D. - 22

+2
Answers (1)
  1. 18 January, 19:34
    0
    We just need to substitute the x by - 2 in the function:

    f (x) = (x - 4) + 8x

    f (-2) = (-2 - 4) + 8 (-2)

    f (-2) = (-6) - 16

    f (-2) = - 6 - 16

    f (-2) = - 22
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