The linear model, y equals. 1967 x plus 15.66 comma provides the approximate enrollment, in millions, between the years 2003 and 2012, where x equals 0 corresponds to 2003, x equals 1 to 2004, and so on, and y is in millions of students.

The number of students enrolled in 2012 is approximately 17,400,000 to the nearest 100,000

Step-by-step explanation:

y = 0.1967x + 15.66

x = years since 2003

y = number of students enrolled in millions

In 2012, x = 9 (2012 is 9 years from 2003)

y = 0.1967 (9) + 15.66

y = 1.7703 + 15.66 = 17.4303 millions = 17,430,300 = 17,400,000 to the nearest 100,000