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8 December, 16:44

Suppose that y varies directly with x and y=12 when x=-2. what is when x=-6?

+4
Answers (2)
  1. 8 December, 16:57
    0
    Y=4

    How?

    When they say directly you should multiply the x and y together. You would get - 24, now using that number divide - 24 by the new x (-6) you would get 4.
  2. 8 December, 16:59
    0
    Step-by-step explanation:

    Y varies directly with x

    First find the value of the proportionality constant K

    Y=KX

    Where K is d constant of proportionality

    12 = - 2K

    Divide 12 by the coefficient of K

    K=12: (-2) = -6

    When X=-6, substitute the value of K

    Y=KX

    Y=-6 * (-6)

    Y=36
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