The graph represents the journey of a bus from the bus stop to different locations:

Part A: Use complete sentences to describe the motion of the bus in parts 1, 2, 3, 4, and 5 of the journey. (4 points)

Part B: In which parts of the graph is the function increasing, decreasing, and constant? (4 points)

Part C: Is the graph linear or non-linear? Explain your answer. (2 points)