Answer:
-4
Step-by-step explanation:
From (-1,1) to (0,-3) is a fall of 4 and a run of 1
therefore rise over run = -4/1 = -4
Slope Formula
[tex]slope = m = \frac{rise}{run}=\frac{change~in~y}{change~in~x} = \frac{y_{2}-y_{1}}{x_{2}-x_{1}} =[/tex] -4
Hope this helps,