A: part1 the distance and time are increasing. Part2 the bus stops for a certain amount of time. Part3 The bus is going closer to original starting point. Part4 stops again for a certain amount of time. Part 5 the bus moves further away from original starting point.
B: the function was increasing for parts 1 and 5. The function was decreasing for part 3. And the function was constant for parts 2 and 4.
C: the graph is non-linear, because it does not make one straight line.
