The expression of the slope with given two points can be expresses as:
[tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]The givne points : (9,3) & (19, -17)
SUbstitute the values and simplify
[tex]\begin{gathered} \text{ Slope=}\frac{19-9}{-17-3} \\ \text{ Slope=}\frac{10}{-20} \\ \text{ Slope=}\frac{-1}{2} \end{gathered}[/tex]Answer : Slope = -1/2
