Tuition at American public universities: This is a continuation . The following table shows the average yearly in-state tuition and required fees, in dollars, charged by American public universities...

Tuition at American public universities: This is a continuation . The following table shows the average yearly in-state tuition and required fees, in dollars, charged by American public universities in the school year beginning in the given year.

a. Show that these data can be modeled by a linear function, and find its formula.

b. What is the slope for the linear function modeling tuition and required fees for public universities?

 c. What is the slope of the linear function modeling tuition and required fees for private universities?

 d. Explain what the information in parts b and c tells you about the rate of increase in tuition in public versus private institutions.

e. Which shows the larger percentage increase from 2004 to 2005?