# Answer to Question #21966 in Geometry for jir

Question #21966

y=mx and 5=my if they are perpendicular find (m)

Expert's answer

If two lines are perpendicular then k1*k2=-1

We have y=mx and y=5/m

So in our case k1=m, k2=0

m*0=-1 is false for any value of m. Thus, there's no solution.

We have y=mx and y=5/m

So in our case k1=m, k2=0

m*0=-1 is false for any value of m. Thus, there's no solution.

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