A graph titled Position versus Time with time in seconds on the x axis, numbered 0 to 12, position in meters on the y axis, numbered 0 to 12. The graph starts at the origin and is a straight line up to point (4 s, 12 m). It is then a horizontal line to point (6 s, 12 m). The graph goes back down to the x axis as a line to point (12 s, 0 m). Use the graph to determine the velocity of the object. What is the instantaneous velocity of the object at 3 seconds? m/s What is the average velocity of the object? m/s