A graph titled Position versus time for with horizontal axis time (seconds) and vertical axis position (meters). The line runs in 3 straight segments from 0 seconds 0 meters to 4 seconds 12 meters to 6 seconds 12 meters to 12 seconds 0 meters.
 Use the graph to determine the velocity between 6 and 12 seconds.
 m/s
A -2
B -1
 C 0
D 1
E 2
What was the velocity over the entire trip?
A -2
B -1
 C 0
D 1
E 2
 m/s