1) There was a flu epidemic at State University. The graph below shows the total number of cases of flu, as reported by the Student Health Center during the epidemic. Use the graph to answer the questions below, based on the Student Health Center data. Total Cases of Flu during an Epidemic at State University 18 NAOOONEO Hundreds of Student Cases of Flu Number of Days Since the Flu Outbreak Began (a) About how many students had the flu when the outbreak began and on the eighth day of the flu outbreak? [2] (b) How long did it take for 1300 students to come down with the flu once the outbreak began? [1] (c) Estimate the average rate of change in the flu cases between day 5 and day 10. [1] (d) On which of these days are the flu cases increasing the fastest? Day 2, day 4, day 8, day 16 or day 32? [2] (e) During which five-day span were there more new cases of the flu: between day 5 and day 10 or between day 15 and day 20? Justify your answer by comparing the average rate of change between days 5 and 10 with that between days 15 and 20 and write conclusions using complete sentence(s).[3] 11