Find the equations to the altitudes of the triangle whose angular points are `A(2,-2),B(1,1)a n dC(-1,0)dot`

Explanation

`m=(y_2-y_1)/(x_2-x_1)`

`y-y_1=m(x-x_!)`

`m_(BC)=(0-1)/(-1-1)=1/2`

`m_(AD)=-2`

Equation of AD`y-(-2)=(-2)(x-2)`

`y+2=-2x+4`

`y+2x=2`

`A(2,-2),C(-1,0)`

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