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


   

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) About Me  (Show Source):
You can put this solution on YOUR website!
.
The slopes are opposite reciprocal  3%2A%28-1%2F3%29 = -1  ====> the lines are perpendicular.