Answer
y=-$\frac{1}{2}$x+10
Work Step by Step
through (2;9) ,(8;6)
m=$\frac{6-9}{8-2}$=$\frac{-3}{6}$=-$\frac{1}{2}$
y-$y_{1}$=m(x-$x_{1}$) through (2;9)
y-9=-$\frac{1}{2}$(x-2)
y-9=-$\frac{1}{2}$x+1
y=-$\frac{1}{2}$x+10