[tex]y- y_{1}= \frac{ y_{2} - y_{1} }{ x_{2} - x_{1} }(x- x_{1}) [/tex]
[tex]y-1= \frac{-2-1}{-4-6}(x-6) [/tex]
[tex]y-1= \frac{-3}{-10}(x-6) [/tex]
[tex]y-1= \frac{3}{10}x- \frac{18}{10} [/tex]
[tex] -\frac{3}{10}x+y=- \frac{18}{10} + 1[/tex]
[tex]- \frac{3}{10}x+y=- \frac{8}{10} [/tex]
