The graph shows the projections in total enrollment at degree granting institutions from Fall 2003 to Fall 2012. Enrollment (in millions) 25- 15.6 15.8 16.0 16.3 16.4 16.7 16.9 17.1 17.4 17.7 03 04 05 06 07 08 09 10 11 12 The linear model, y = .2285x+15.56, provides the approximate enrollment, in millions, between the years 2003 and 2012, where x = 0 corresponds to 2003, x=1 to 2004, and so on, and y is in millions of students. (Type an integer or decimal rounded to the nearest tenin as needed.) (b) Use the model to determine the year in which enrollment is projected to reach 17 million. 2009 (Round down to the nearest year.) (c) How do your answers to parts (a) and (b) compare to the corresponding values shown in the graph? They are absolutely different. They are quite close. (d) The enrollment in Fall 1993 was 14.3 million. The model here is based on data from 2003 to 2012. If you were to use the model for 1993, what would the enrollment be? The enrollment would be millions. (Type an integer or decimal rounded to the nearest tenth as needed.)