Sam looks at Dean's work and tells him that he was wrong to pick the quadratic model. To explain why, he showed both of Dean's lines plotted over a much greater distance, to show what would happen to a ball falling over a longer time period. 1200 y = 1100.2x - 48.585 4) What happens to velocity as time 1000 increases in the linear graph to the left? 800 Velocity (cm) 600 400 200 0 0.8 1 0 0.2 0.4 0.6 1.2 Time (s)