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25 December, 12:06

Y is inversely proportional to x and y = - 8 when x = 3. Find the value of y when x = - 2

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  1. 25 December, 12:32
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    Y α 1/x

    y = k/x

    xy = k where k = * konstant of variation.

    When y = - 8, x = 3

    k = xy

    k = 3*-8 = - 24

    Finding y when x = - 2.

    Recall:

    xy = k

    xy = - 24

    -2*y = - 24

    y = - 24/-2

    y = 12
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