SOLUTION: Are m1=7/4, m2=4/7 parallel, perpendicular or neither?

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Question 1123134: Are m1=7/4, m2=4/7 parallel, perpendicular or neither?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Are m1=7/4, m2=4/7 parallel, perpendicular or neither?
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Parallel --- slopes are equal
Does m1 = m2?
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Perpendicular --- slopes are negative inverses, ie, the product of the 2 slopes = -1
Is m1*m2 = -1?