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I have to find which line is perpendicular to the line given

I have to find which line is perpendicular to the line given-example-1
User Srilakshmi
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Perpendicularity law


\begin{gathered} m_1m_2=-1 \\ -5m_2=-1 \\ m_2=(1)/(5) \\ y-y_1=m(x-x_1) \\ y-(-4)=(1)/(5)(x-10) \\ y+4=(x)/(5)-2 \\ y=(1)/(5)x-2-4 \\ y=(1)/(5)x-6 \end{gathered}

User Sneusse
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