The population of a small town, p, is modelled by the function p(t) = 10050 + 225t – 20t*2 , where t is the time in years from now. a) Determine the average rate of change of the population from year 5 to year 10  b) Interpret your answer in part a) e) Graph the function in the ruler-paper-pencil style and verify your interpretation  in part b). Please show ALL your calculations.

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