Answer:
Slope (m) = -1/3
Explanation:
If you look at the 2 points on the line, you'd move 1 unit down and 3 units to the right, from the first point to get to the second point. Remeber that since the line is going downwards to the right, it will have a negative slope.
(Rise = up and down movement, and Run = left and right movement)
Hope this helped