SOLUTION: Is the line through points P(–8, –10) and Q(–5, –12) perpendicular to the line through points R(9, –6) and S(17, –5)? Explain.
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-> SOLUTION: Is the line through points P(–8, –10) and Q(–5, –12) perpendicular to the line through points R(9, –6) and S(17, –5)? Explain.
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Question 529742: Is the line through points P(–8, –10) and Q(–5, –12) perpendicular to the line through points R(9, –6) and S(17, –5)? Explain. Answer by solver91311(24713) (Show Source):
where and are the coordinates of the given points P and Q.
Then do it again for points R and S.
If the slope of the line through P and Q is the negative reciprocal of the slope of the line through R and S, then the lines are perpendicular. Otherwise, not.
John
My calculator said it, I believe it, that settles it
