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The variables x and y vary directly. Given the model y = - 2x, find the value of x when y = - 16.

a. 8 b. 16 c. 32 d. 64

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  1. 10 May, 21:42
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    We know that y = - 2x.

    To find the value of x when y = - 16, we simply plug - 16 in for y in our equation.

    y = - 2x

    -16 = - 2x Divide both sides by - 2, to get x all by itself

    8 = x

    Answer is A
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