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5 March, 14:01

Use the direct variation equation. If y=4 when x=-2. Find x when y=-5.

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  1. 5 March, 14:12
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    Step-by-step explanation:

    Y & X

    Y = KX

    K = Y/X

    When Y = 4, X = - 2

    K = 4/-2

    K = - 2

    Y = - 2X

    When Y = - 5

    -5 = - 2X

    X = - 5/-2

    X = 2 1/2
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