Algebra

Write an equation of the line passing through each of the following pairs of points.

(4, 0), (−2, 8)

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  1. the slope is 8/-6 = -4/3
    So, using the point-slope form,
    y = -4/3 (x-4)
    or
    y-8 = -4/3 (x+2)

    you can verify that they describe the same line.

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    oobleck
  2. (4, 0), (-2, 8).
    Y = mx + b.
    m = (8-0)/(-2-4) = -4/3.
    b = y-mx = 0 - (-4/3)4 = 16//3.

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  3. (2,0) and (4,2)

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