SOLUTION: Are lines L1 through (-2,1) and (0,3) and L2 through points (3,2) and (5,0) perpendicular?

SOLUTION: Are lines L1 through (-2,1) and (0,3) and L2 through points (3,2) and (5,0) perpendicular?

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Question 95787: Are lines L1 through (-2,1) and (0,3) and L2 through points (3,2) and (5,0) perpendicular?
Answer by elima(1433) (Show Source): You can put this solution on YOUR website!
L1; m =
m =
m =
L2; m =
m =
Yes they are perpendicular, lines are perpendicular if there slopes are negative reciprocals.
:)
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