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15 April, 23:08

Guided Practice

Show that f and g are inverse functions.

3A. f (x) = 18 - 3x, g (x) = 6 - x/3

F[g (x) ] and G[f (x) ]

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  1. 16 April, 01:47
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    F (x) and g (x) are basically = y

    So if u sub f (x) and g (x) with y

    Y = 18-3x

    -18 = - 3x

    X = 6

    f (x) = 6

    Y = 6 - x/3

    -6=x/3

    X=18

    G (x) = 18

    The answer is:

    f (x) = 6

    g (x) = 18
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