
Marathon Times. The following table lists the record marathon times in 1981 and in 2011. [2.6e]
NUMBER OF YEARS AFTER 1981 |
RECORD MARATHON TIME (in minutes) |
0 |
128 |
30 |
124 |
Data: marathonguide.com |
a. Use the two data points in the table to find a linear function
b. Use the function to estimate the record marathon time in 2020.
c. In what year will the marathon record be 122 min?

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