Mathematics, 19.05.2021 19:40 nana55959

The number of S students (in thousands) who graduate in four years from a university can be modeled by the function S(t)= -1/4t^3+t^2+23, where t is the number of years since 2010. a. Use a graphing calculator to graph the function for the interval 0 ≤ t ≤ 5. Describe the behavior of the graph on this interval.

b. What is the average rate of change in the number of four-year graduates from 2010 to 2015?

c. Do you think this model can be used for years before 2010 or after 2015? Explain your reasoning.

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The number of S students (in thousands) who graduate in four years from a university can be modeled...