The table lists the average annual costs(in dollars) of tuition and fees at publicfour-year colleges for selected years. (b) and (c) are unavailable. I just can't figure out the correct equation.

The table lists the average annual costs (in dollars) of tuition and fees at public four-year colleges for selected years. Answer part (a) through (c). 106 1999 3404 2001 3824 2003 5438 (a) Use a calculator to nd the least-squares regression line for these data, where x = 0 corresponds to 1993, x =2 corresponds to 1995, and so on. WE (Use integers or decimals for any numbers in the expression. Round to one decimal place as needed.)