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the equation of a line perpendicular to the line y = x - 3 and containing the point (8, -2).

  • math -

    slope of given line = 1
    slope of perpendicular line = -1

    so new equation :
    y = -x + b
    plug in the point ...
    -2 = -1(8) + b
    b = 6

    new equation: y = -x + 6

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