College enrollment: This is a continuation . We use the data in the college enrollment table that appears. a. Find the equation of the regression line model for college enrollment as a function of...

College enrollment: This is a continuation . We use the data in the college enrollment table that appears.

a. Find the equation of the regression line model for college enrollment as a function of time, and add its graph to the data plot made.

b. Explain the meaning of the slope of the line you found in part a.

c. Express, using functional notation, the enrollment in American public colleges in 2007, and then estimate that value.

d. Enrollment in American public colleges in 1993 was 11.2 million. Does it appear that the trend established in the early 2000s was valid as early as 1993?