SOLUTION: How do i know if an equation is going to be perpendicular? If the solution is -1

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Question 25261: How do i know if an equation is going to be perpendicular? If the solution is -1
Found 2 solutions by elima, joella32155:
Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
If there slopes are negative opposites;
ex;
5%2F1
line perpindicular;
-1%2F5
=)

Answer by joella32155(1) About Me  (Show Source):