Answer:
-4
Step-by-step explanation:
down 4, right 1
-4/1
Points: (-1,3) and (0,-1)
m = y2 - y1/x2 - x1
m = -1 - 3/0 - (-1)
m = -1 - 3/0 + 1
m = -4/1
m = -4