Answer:
The slope is one.
Step-by-step explanation:
You can use the formula (y1-y2)/(x1-x2). Plugging in the points, it would be
(-1-1)/(-2-0) which simplifies to -2/-2, then just 1. You can also make a graph if you really aren't sure whether you did the problem right or make the full equation and plug the points in to make sure it checks out. :) Hope that helps?