an once, were the data Same? Explain. What factors make measuring a speed difficult? Test Preparation Use these questions to prepare for standardized tests. Study the graph. Then answer Questions 23-27. 24. )During each 15-minute interval, the train 45 travels a distance of a. 9 kilometers. b. 18 kilometers. 36 c. 36 kilometers. d. 45 kilometers. 25. According to the graph, how long does it 27 take for the train to travel 27 kilometers? Distance (kilometers) a. 15 minutes b. 30 minutes 18 c. 45 minutes d. 1 hour 9 26. What is the train's speed? a. 9 km/h b. 18 km/h c. 36 km/h d. 72 km/h 0 15 30 45 60 75 27 After 75 minutes, the train stops for 5 Time (minutes) minutes to pick up passengers. How would the graph look during this period? 23. What would be the best title for this graph? a. The line would slant downward. b. The line would be horizontal. a. Train at Rest c. The line would be broken. b. Train Moving at Constant Acceleration d. The line would stop at a point and c. Train Moving at Constant Speed continue from the same point once the d. Train Slowing to a Stop train begins to move again