One possible reason for the explosion of college tuition involves the decrease in government aid per student. In 2001, higher-education revenues per student averaged $8500. The bar graph shows government aid per U.S. college student from 2005 through 2012. (All figures are adjusted for inflation and expressed in 2012 dollars.)The mathematical modeldescribes government aid per college student, G, x years after 2005.

a. Does the model underestimate or overestimate aid per student in 2011? By how much?

b. If we project the model past 2012, determine in which year government aid per student decreased to $4127.

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Government Aid per Student $9000 $8000 $7000 $6000 $5000 $4000 $3000 $2000 $1000 7100 Higher-Education Government Aid per U.S. College Student 7600....7800 *7300 7300 7000 6600. *** 6000 ...…. ******* 2005 2006 2007 2008 2009 2010 2011 2012 Year