Find the equation of the altitudes of the triangle whose vertices are `A(7,-1),B(-2,8)a n dC(1,2)dot`

Explanation

Given,
`A(7,-1),B(-2,8)a n dC(1,2)dot`


Let slope of` (BC)=(2−8)/(1+2)=(−6)/(3)=−2`

Since AD and BC are perpendicular so,
slope of AD perpendicular to BC

`m_1xxm_2=-1`

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