Riley ran the fastest during the interval [2,11] because during this time, she covered a distance of 1.1 miles (from 0.4 miles at 2 minutes to 1.5 miles at 11 minutes), which means her speed was greater compared to the interval [0,8], where she only covered 1 mile.
Use the image to answer the question.
A coordinate plane for distance versus time. The points are (0,0), (2,0.4), (8,1), (11,1.5)
Riley is training to run a 5-mile race. The graph represents the distance (miles) she ran with respect to time (minutes) in her first training run. Over which time interval did she run the fastest, [0,8] or [2,11]? Justify your answer in 1 sentence. Like a 9th grader.
1 answer
1 answer