# Chapter 8 - Section 8.1 - Review of Equations of Lines and Writing Parallel and Perpendicular Lines - Exercise Set - Page 573: 40

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

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