HELP

Given \DeltaΔABC with A(-7,-1) B(9,-5) C(-1,6), determine the equation of median AD in standard form. D is on segment BC.

Hello alinakapp!

\(D(\frac{-1+9}{2},\frac{-5+6}{2})\\ D(4,0.5)\)

\(m_{AD=}\frac{0.5-(-1)}{4-(-7)}\\ m_{AD}=\frac{4}{11}\)

\(f_{AD}(x)=y=m(x-x_A)+y_A\)

\(f_{AD}(x)=\frac{4}{11}(x-(-7))+(-1)=\frac{4}{11}x+\frac{28}{11}-1\)

\(f_{AD}(x)=y=\frac{4}{11}x+\frac{17}{11}\)

  !