The graph shows Ms. Collin's driving speed during 10 minutes of her commute. Driving Speed 70 60+ 50 40 Speed (miles per hour) 30 20 10 0 1 2 9 10 3 4 5 6 7 8 Time (minutes) Between which times did Ms. Collin drive at a constant speed? A. O and 2 minutes B. 2 and 4 minutes O c. 4 and 6 minutes D. 6 and 8 minutes
