Question

Which set of slopes are perpendicular? 3,-3 -4, 1/4 5/3, 3/5 ,

Answer 1

Two lines are perpendicular when the product of their slope is equals to minus one. It is represented mathematically as

`m_1m_2=-1`

From the option the answer will be B.

`\begin{gathered} -4*(1)/(4)=-1 \\ \text{where} \\ m_1=-4 \\ m_2=(1)/(4) \end{gathered}`