SOLUTION: determine whether the lines l1 and l2 are parallel, perpendicular, or neither. l1: y=3x-5 l2: y=-1/3+2 thank you!

SOLUTION: determine whether the lines l1 and l2 are parallel, perpendicular, or neither. l1: y=3x-5 l2: y=-1/3+2 thank you!

Algebra.Com

Question 1127018: determine whether the lines l1 and l2 are parallel, perpendicular, or neither.
l1: y=3x-5
l2: y=-1/3+2
thank you!
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

The slopes are opposite reciprocal   = -1  ====> the lines are perpendicular.

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