The table lists total fall enrollments in degree-granting two-year colleges in the United States for selected years.

(a) Plot the data. Let x = 0 correspond to the year 2008.

(b) Find a quadratic function g(x) = ax² + bx + c that models the data.

(c) Plot the data together with g in the same window. How well does g model enrollment?

(d) Use g to estimate total enrollment in 2013 to the nearest tenth of a million.

Year ............................Enrollment (in millions)

2008 ............................................6.9

2009 ............................................7.5

2010 ............................................7.7

2011 ............................................7.5

2012 ............................................7.2