Answer:
2
Step-by-step explanation:
1'st step: Use the formula m=(y2-y1)/(x2-x1)
2'nd step: (5-1)/(-1-(-3))
3'rd step: 4/(-1+3)
4'th step: 4/2 = 2
Therefore the slope of (-3, 1), (-1, 5) is 2