Interpret, in a written description, what the graph is saying about the relationship between the variables.
Answer
A
You leave home and drive for 6 hours with no stops.
B
You leave home, drive for 1 hours at a constant speed, stop for 30 minutes, continue at the same speed, stop for 1 hour and then continue at the same speed as before.
C
You leave home, drive for 2 hours at a constant speed, and then stop for 1 hour. Finally you continue at a slower (but constant) speed than before.
D
You leave home, drive for 3 hours at a constant speed, and then stop for 2 hours. Finally you continue at the same speed as before.