terryp terryp
  • 01-05-2015
  • Mathematics
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opposite reciprocal slope lines or parallel or perpendicular

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AL2006
AL2006 AL2006
  • 01-05-2015


-- If two lines on a graph are parallel, then their slopes are equal.

-- If two lines on a graph are perpendicular, then their slopes are
negative reciprocals.


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