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5 November, 10:09

Suppose y varies inversely with x. Write an equation if y=-3 when x=17

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  1. 5 November, 10:32
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    y = - 51 : x

    Step-by-step explanation:

    The standard format of a inversely proportional equation goes by the format of y = k : x. The question asks us to write an equation if y = - 3 when x = 17 and y varies inversely with x.

    So we substitute the values y = - 3 and x = 17 in the equation y = k : x

    K = constant, we have to work this out

    -3 = k : 17

    -3 * 17 = k

    k = - 3 * 17

    k = - 51

    k = - 51 So then we put this back into the original y = k : x to find our final equation which is y = - 51 : x
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