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23 June, 12:07

If f (x) = 2X + 4 and g (x) = 3X-7; then find g-1 (2)

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  1. 23 June, 12:21
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    is the question g inverse?

    i have answered for g inversed

    g (x) = 3x-7

    y=3x-7

    interchanging the value of x and y

    x=3y-7

    (x+7) / 3=y

    g-1 (x) = (x+7) / 3

    so g-1 (2) = (2+7) / 3

    =9/3

    =3

    therefore 3 is the answer
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