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26 January, 16:27

Suppose y varies directly as x, and y = 14 when x = - 4. What is the value of y when x = - 6

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  1. 26 January, 20:26
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    y = 21

    Step-by-step explanation:

    direct variation

    y = kx

    14 = k (-4)

    solve for k

    -14/4 = k

    -7/2 = k

    y = - 7/2 x

    now substitute in x = - 6

    y = - 7/2 * - 6

    y = 7/2 * 6

    y = 21
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