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4 February, 10:17

Is x+y=7 and x-y=9 parallel, perpendicular, or neither

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Answers (2)
  1. 4 February, 11:02
    0
    Perpendicular because the slopes are negative reciprocal of each other

    y = - x + 7

    y = x + 9
  2. 4 February, 13:15
    0
    Perpendicular because the slopes are negative reciprocal of each other

    y = - x + 7

    y = x + 9
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