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27 August, 12:09

Given that y varies directly with x, what is the equation of direct variation if y is 3 when x is 7?

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  1. 27 August, 15:22
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    Y α x

    y = kx

    3 = k*7

    3 = 7k

    3/7 = k

    k = 3/7

    Relationship is y = kx, that is y = (3/7) x
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