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March 30, 2017

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how can you tell in geometry that the equations are parallel, perpendicular , neither, either?

  • geometry - ,

    If the slopes of the lines are equal, the lines are parallel
    if the slopes are negative reciprocals of each other, the lines are perpendicular, ( e.g. 5/3 vs -3/5)

  • geometry - ,

    parell is when lines are black

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