Answer:
D. -2
Step-by-step explanation:
slope formula = [tex]\frac{y_{2}-y_{1} \\ }{x_{2} -x_{1} }[/tex]
(-1,3)
[tex]x_{2}, y_{2}[/tex]
(4,-7)
[tex]x_{1}, y_{1}[/tex]
Plug in the numbers into the formula now
[tex]\frac{3-(-7)}{-1-4}[/tex]
negative minus negative equals positive
[tex]\frac{10}{-5}[/tex]
reduces to -2