Constant motion is the when an object moves the same speed during the duration of the video. When we rolled a ball across the floor of the gym, the ball did not go up in the air or drop so the graph is a straight line. The graph is a diagonal line because in order to tell that the ball is staying at a constant speed the slope need to be the same. A consistent slope throughout the graph means a consistent speed throughout the graph. We see this type of motion in a couple sports. One of them is would be when one hockey player passes the puck to another as long as the puck does not leave the ice. The next is curling,