Question

Choose the slope that is perpendicular to -2

Answer 1

It is given that the slope is -2.

`m_1=-2`

Recall that

`\begin{gathered} \text{If }m_1\text{ and }m_2\text{ are perpendicular then it can be written as } \\ m_2=-(1)/(m_1) \end{gathered}`

`\text{Substitute }m_1=-2,\text{ we get}`
`m_2=-(1)/(-2)=(1)/(2)`

Hence the slope 1/2 that is perpendicular to -2.