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18 May, 23:39

Which equation is the inverse of y = 9x2 - 4?

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  1. 19 May, 02:09
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    Y = 9x^2 - 4

    x^2 = (y + 4) / 9

    x = sqrt (y+4) / 3

    f (-1x) = [sqrt (x + 4) ] / 3
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