Answer:
-1 is the slope
Explanation:
to find the slope, you should find two different points on the line which is exactly on the grid. For example, (-2,0) and (-1,-1) is an ok choice. The formula for slope is y^2 - y^1 / x^2 - x^1 = slope
so it would look like -1-0 / -1-(-2)
then -1/1
which is -1
good luck