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21 January, 13:41

Which of the following equations describes the line shown below? (1, 10) (-3, 2)

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  1. 21 January, 15:46
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    (1,10) (-3,2)

    slope = (2-10) / (-3-1) = - 8/-4 = 2

    y = mx + b

    slope (m) = 2

    (1,10) ... x = 1 and y = 10

    now we sub and solve for b, the y int

    10 = 2 (1) + b

    10 = 2 + b

    10 - 2 = b

    8 = b

    equation is : y = 2x + 8 ... or 2x - y = - 8
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