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1 November, 07:05

F (x) = 3x + 1 and f-1 =

then f (2) =

+5
Answers (1)
  1. 1 November, 10:03
    0
    f (x) = 3x + 1

    f - 1 = 3x + 1-1

    = 3x

    f (x) - 1 = 3x

    then f (2) = 3*2+1

    =6+1

    f (2) = 7.

    f (-1) = 3 * (-1) + 1

    = - 3+1

    f (-1) = - 2
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