What is the slope of the line?

-2
-1
1
2

-2 which is choice A



Each time you move to the right 1 unit along the x axis, you will move 2 units down on the y axis along the diagonal line. 

The rise is -2 indicating a drop of 2 for each time the run is 1
rise/run = -2/1 = -2

An alternative is to use the slope formula m = (y2-y1)/(x2-x1) and you'll get the same answer. You can pick any two points on the line.