Explanation:
Observing the graph, we see that the object moves at a constant velocity of 3 m/s during the span of 6 to 8 seconds. We can thereby find displacement in the in this intreval by finding the area under the curve during 6 to 8 seconds (forming a rectangle).
Displacement (area of rectangle with length = 3 and breadth = 2) = 3 * 2 = 6 m
