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PARALLEL AND PERPENDICULAR would 3 over -5 (3/-5) -5  over -3 (-5/-3) be a perpendicular slope?
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PARALLEL AND PERPENDICULAR

would 3 over -5 (3/-5) -5  over -3 (-5/-3) be a perpendicular slope?

User Padarom
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k:y=m_1x+b\\l:y=m_2x+c\\\\k\ ||\ l\ if\ m_1=m_2\\\\k\ \perp\ l\ if\ m_1m_2=-1

We have:

m_1=(3)/(-5)=-(3)/(5);\ m_2=(-5)/(-3)=(5)/(3)\\\\m_1m_2=-(3)/(5)\cdot(5)/(3)=-1
Answer: a perpendicular slope.

User John Bayko
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