learn.maricopa.edu C + MRMM M PeopleSo... MA Mat 151 S... eResource.. Basic Sea... s Documen thesis re.. Course H... Homewor... G Over wha... ments Women Earning Ph.D.s Syllabus The function shown in the figure estimates the number of women who earned a Ph.D. in the 20th century. 10 20,000 - 18,000 + 16,000 -+ 14,000 + 12,000 N(t) Number of Women Earning Ph.D.s 10,000 - 8000 - 6000 - 4000 - 2000 - 10 20 30 40 50 60 70 80 90 100 Years Since 1900 a. Over what interval(s) is the function increasing and concave up? Over what interval(s) is it increasing and concave down? b. What does the concavity indicate about the rate of increase in the number of women earning Ph.D.s? c. Estimate the average rate of change from t = 1960 to t = 1970, and from t = 1970 to t = 1980. Search entries or author Unread