SOLUTION: If a line has a slope of -2/3, what is the slope of a line perpendicular to it?

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Question 1019425: If a line has a slope of -2/3, what is the slope of a line perpendicular to it?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Lines that are perpendicular to
one another have slopes that
multiply together to give -1.
m1 x m2 = -1
-2/3 x m2 = -1
m2 = 3/2
Hope this helps :-)