Answer:
Slope = -4
Step-by-step explanation:
Choose any two points
(x₁ , y₁) = (-7, 21) ; (x₂, y₂) = (-6, 17)
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\[/tex]
[tex]=\frac{17-21}{-6-[-7]}\\\\=\frac{17-21}{-6+7}\\\\=\frac{-4}{1}\\\\=-4[/tex]
