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18 September, 19:47

Given f (x) = 4x + 6 and

g (x) = - x + 9, find f (g (7)).

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  1. 18 September, 21:49
    0
    Sub g into f

    4 (-x+9) + 6

    -4x+42

    Sub 7 into x

    -4 (7) + 42

    = - 28+42

    = 14
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