1. Use the next formula to find the slope:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex][tex]m=\frac{-4-5}{-6-6}=\frac{-9}{-12}=\frac{3}{4}[/tex]2. Use the slope (3/4) and one of the points to find the y-intercept (b):
[tex]\begin{gathered} y=mx+b \\ (6,5) \\ \\ 5=\frac{3}{4}(6)+b \\ 5=\frac{18}{4}+b \\ \\ b=5-\frac{18}{4} \\ b=\frac{20-18}{4} \\ b=\frac{2}{4} \\ b=\frac{1}{2} \end{gathered}[/tex]