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25 November, 17:14

Find the value of r so that the line passes through (r, 5) and (3,13) has a slope of 8

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  1. 25 November, 17:19
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    r=2

    Step-by-step explanation:

    m = (y2-y1) / (x2-x1)

    8 = (13-5) / (3-r)

    8=8 / (3-r)

    8 (3-r) = 8

    24-8r=8

    8r=24-8

    8r=16

    r=16/8

    r=2
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