The graph shows the speed of jamal’s car over time. a graph titled speed of car. the horizontal axis shows time (hours) and the vertical axis shows speed (m p h). both axes are unnumbered. a line appears in 4 sections, labeled a, b, c, d. section a shows a rise in speed over time, sections b and d maintain a level speed over time, and section c shows a reduction in speed over time. which best describes what is happening in section b? jamal is stopped. jamal is speeding up. jamal is slowing down. jamal is traveling at a constant speed.