The Olympic record for the men's 400-meter hurdle race is 45.94 seconds. It was set by Karsten Warholm in 2021. His average running speed was 400 = 45.94 28.71 meters per second (distance divided by time equals speed) 1. Make a table and a graph showing how 400 meter race time changes as average speed increases from 2 meters per second to 10 meters per second in steps of one meter per second (in other words, the speed column should go 2, 3, 4, --. 10). Also remember that distance is equal to rate (or speed) times time. d=yt

2. Describe the pattern of change shown in your table and graph

3. Write a rule (equation) showing how to calculate race time, t. for any average speed, s.

4. Which change in speed will reduce rate time the most an increase from 2 to 4 meters per second or an increase from 8 to 10 meters per second? Explain how your answer is illustrated in the shape of your graph.​