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2 April, 13:21

Direct variation equation when y=-15 and x=5 then find y when x=9

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  1. 2 April, 16:26
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    y = - 27

    Step-by-step explanation:

    y = kx

    -15 = k5

    -3 = k

    The constant in the equation is - 3.

    y = - 3x

    y = - 3 (9)

    y = - 27
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