The distance travelled between t=2 and t=4, the speed of the car in kilometres per hour when t=0.

I can see questions (b) and (c) asking about distance travelled and speed. However, the image does not include the function or graph that describes the car's motion (e.g., distance as a function of time, $s(t)$, or velocity as a function of time, $v(t)$).

To solve these problems, please provide the equation or graph that describes the car's motion.