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Math Help - Perpendicular Lines

  1. #1
    Mad
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    Perpendicular Lines

    Find the equation of the line containing the point (-1,4) and perpendicular to the line y= -3/2x - 4

    y= 2/3x - 4

    Is that it? Or is it y= 2/3x + 4 or something else?
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  2. #2
    Junior Member Singular's Avatar
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    y=(-3/2)x-4 ----> gradient=(-3/2)

    perpendicular -----> gradient = 2/3

    y=(2/3)x+c
    4=(-2/3)+c
    c=14/3

    y=(2/3)x+(14/3)
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