Answer:
slope = 3
Explanation:
If you recall, slope is rise/run (or y/x). Look at the point intersections (where the line crosses through a point on the graph) and compare that to the distance of the nearest point intersection.
Looking at points (-1, -5) and (0, -2) we observe that the x changes by +1, and the y changes by +3. Using rise/run (y/x) we get 3/1. The slope is 3.