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4 July, 01:01

Which equation is the inverse of 2 (x - 2) 2 = 8 (7 + y) ?

D. y=+or-sqrt28+4x so the answer is D.

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  1. 4 July, 01:19
    0
    "The given expression is

    2 (x - 2) ² = 8 (7 + y)

    Rewrite the expression as follows:

    7 + y = (2/8) * (x-2) ² = (1/4) * (x-2) ²

    y = (1/4) (x-2) ² - 7

    To find the inverse, switch x and y, and solve for y.

    x = (1/4) (y-2) ² - 7

    Multiply through by 4.

    4x = (y-2) ² - 28

    (y-2) ² = 4x + 28

    y - 2 = √ (4x + 28)

    y = 2 + / - √ (4x + 28)

    This expression is the inverse of the given expression.

    Therefore the answer is D."

    By Dzampo
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