roxanamejia19 roxanamejia19
  • 20-09-2019
  • Mathematics
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Two lines are perpendicular if

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ashleyschaper ashleyschaper
  • 20-09-2019

Answer:

They meet/cross at a 90 degree angle

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kathrynkellygilbert
kathrynkellygilbert kathrynkellygilbert
  • 20-09-2019
their slopes are negative reciprocals
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