In technical terms, the slope of the line is the change in y over the change in x. But I just like to think of it as rise over run. To find the slope of the line, pick two points on the line.
The slope of the line is -2/1 or -2. Because instead of rising you are going down -2. If you divide -2 by 1 it would be -2, so your slope is -2. Hope this helps :)
