Cambridge Secondary (7-9). Stage 8. Science. Learner's Book - Unit 3: Forces and energy - Question 52

Marcus is making a journey from home to a shop. For the first part of the journey, he rides his bicycle at a constant speed. Marcus then stops to talk to a friend. For the last part of the journey, he continues to ride his bicycle at a slower constant speed than before until he arrives at the shop.
a Sketch a distance/time graph for Marcus’s journey.
b Label each part of Marcus’s journey on your graph.