(9).
Given two coordinate points (-3, 5) and (3, -1);
[tex]slope=\frac{y_2-y_1}{x_2-x_1}[/tex]Where ;
[tex]\begin{gathered} x_1=-3 \\ x_2=3 \\ y_1=5 \\ y_2=-1 \end{gathered}[/tex][tex]\begin{gathered} \text{slope}=\frac{-1-5}{3-(-3)}=\frac{-6}{3+3}=\frac{-6}{6} \\ \text{slope}=-1 \end{gathered}[/tex]The slope of the line that passes through points (-3, 5) and (3, -1) is -1
