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Decide whether the pair of lines is parallel, perpendicular, or neither.


  • Math -

    Put both equations in the form of a straight line which is y = mx + b and determine m for each line. If m is the same, the lines are parallel.

  • Math -

    y = -(5/4)x + 10/4
    y = -(4/5)x + 3/5
    not the same slope because -5/4 is not -4/5
    not perpendicular because -(5/4)/-(4/5) is not -1 (it is +1)

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