Answer:
-60
Step-by-step explanation:
1. Pick two solid points on the line. In this case, I picked (0,360) and (2, 240).
2. Substitute the values into the slope formula (m= (y1 - y2)/(x1 - x2)
(360 - 240)/(0-2) = 120/-2
3. Simplify to get -60
