Question

Doug analyzes his data on the scatter plot and concludes that the more time he rides his bike, the slower his speed is. In two or more complete sentences, explain why or why not it is possible for Doug to make his conclusion based on his data.
Please help! Due today! D:

Answer 1

Speed is equal to distance over time.

distance (mi)        time (min)      speed
      2                      10               2/10 = 0.20 mi/min
      4                       20              4/20 = 0.20 mi/min
      6                      45               6/45 = 0.13 mi/min
    10                      50              10/50 = 0.20 mi/min
      8                      60                8/60 = 0.13 mi/min
     11                     60               11/60 = 0.18 mi/min
     12                     70               12/70 = 0.17 mi/min
      15                    90               15/90 = 0.17 mi/min

Based on the scatter plot, he initially had a speed of 0.20 mi/min but the longer he travels the lower his speed is. His last speed based on the graph is 0.17 mi/min.