Answer:
Step-by-step explanation:
The vertical axis represents distance traveled, and the horizontal axis represents time.
At the beginning, time = t = 0 and distance = d = 0.
Between t = 0 and t = 20, the group moved in the positive direction by 40 units. Then, between t = 20 and t = 60, they stayed where they were, at distance 40 units from the origin. (Slope of graph is zero; this means the rate of travel is zero.)
Between t = 60 and t = 120, the group moves further away from the origin (actually, further away from Point C, reaching Point D, which is 150 units from the origin.
Between t = 120 and t = 160, the group is at rest / does not move.
Between t = 160 and t = 200, the group moves back to the origin (distance = 0) at a steady rate.
