The number N (t) of new cases of a flu outbreak for a given city is given by N (t) = 5500 -2-0.05 , where t is the number of months since the outbreak began. (a) Find the average rate of change in the number of new flu cases between months 0 and 2, and interpret the result. (Round to the nearest whole unit.) (b) Find the average rate of change in the number of new flu cases between months 4 and 6, and between months 10 and 12. (Round to the nearest whole unit.) (c) Use a graphing utility to graph the function. Use the graph and the average rates of change found in parts (a) and (b) to discuss the pattern of the number of new flu cases. Part: 0 / 4 Part 1 of 4 (a) The average rate of change in the number of new flu cases between months 0 and 2 is approximately X 5 The number of new flu cases (Choose one) by approximately cases per month during this time interval. dropped increased