Answer:
Slope =0
Step-by-step explanation:
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\\\\\left(x_1,\:y_1\right)=\left(8,\:-9\right),\:\left(x_2,\:y_2\right)=\left(14,\:-9\right)\\\\m=\frac{-9-\left(-9\right)}{14-8}\\\\m = \frac{(-9+9)}{14-8}\\ \\m = \frac{0}{6} \\\\m =0[/tex]