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18 September, 11:22

Find the value of r so that the line that passes through (r,-5) and (3, 13) has a slope of 8. a. (-18/5) b. (3/4) c. 6 d. - 141

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  1. 18 September, 11:38
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    Slope = Change in y / Change in x.

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

    8 = 18 / (3 - r)

    3 - r = 18/8

    3 - r = 9/4

    3 - 9/4 = r

    3 - 2 and 1/4 = r

    3/4 = r

    r = 3/4 B.
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