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Home > CC3 > Chapter 7 > Lesson 7.2.2 > Problem 7-50

7-50.
  1. Lydia drew a graph of four athletes in the final part of the triathlon, the 10 km run. She found the slope of each runner’s line. Her results are listed below. Homework Help ✎

  2. Runner A: slope =

    Runner B: slope =

    Runner C: slope =

    Runner D: slope =

  3. List the runners from slowest to fastest.

The fastest athlete will have the greatest slope, because that means that they were able to run a greater distance in a given amount of time.

One way to see which runner had the greatest slope is to convert each fraction into a decimal.

The decimal approximation for Runner A is 0.33 and for Runner B it is 0.43.
Find the decimal values for the other two runners, then arrange them from least to greatest.