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10 February, 11:48

Which pair of equations are perpendicular lines? A. 5x + 2y = 9 and y = - 5/2x+27/2 B. x - 3y = 11 and y = - 3x + 23 C. 4x + 2y = 6 and y = - 2x + 18 D. x - 3y = 5 and y = 3x - 1

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  1. 10 February, 15:25
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    There is a really easy way to do this problem and that is to use a graphing website

    after punching in the functions:

    A. depending of whether it is - 5 / (2x) or (-5/2) x: intersecting but not perpendicular or parallel

    B. These two lines are perpendicular

    C. Parallel lines

    D. intersecting but not perpendicular
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