madonna564 madonna564
  • 10-04-2017
  • Mathematics
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I need to know which two of these four equations are perpendicular??

I need to know which two of these four equations are perpendicular class=

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jakeashton jakeashton
  • 10-04-2017
The answer is D, equations C and D are perpendicular. You know two lines are perpendicular when their slopes are opposite reciprocals of each other (3 and 1/3). :)
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