The graph shows the position function of a car. Use the shape of the graph to explain

Question:

The graph shows the position function of a car. Use the shape of the graph to explain your answers to the following questions.
(a) What was the initial velocity of the car?
(b) Was the car going faster at B or at C?
(c) Was the car slowing down or speeding up at A, B and?
(d) What happened between D and E?

E A