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26 March, 10:10

Suppose y varies directly with x and when y=10 when x=-3. What direct variation equation relates x and y? What is the value of y when x = - 1?

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  1. 26 March, 12:19
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    Suppose y varies directly as x, and y=-65 when x=-26. Write a direct variation equation that relates x and y.

    .

    If "y varies directly as x" it is in the form of:

    y = kx

    where k is a constant

    .

    Using the values provided, you can find k.

    y = kx

    -65 = k (-26)

    -65 / (-26) = k

    2.5 = k

    .

    So, our equation is:

    y = 2.5x
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