The average cost, in dollars, for tuition and fees for in state students at four year public colleges over the period 20002014 can be modeled by the equation y 4 065x 2 370 1x 3450 where x 0 corresponds to 2000, x 1 corresponds to 2001, and so on Based on this model, for what year after 2000 was th...

Let y 8605 and solve for x 8605 4065x 2 3701x 3450 4065x 2 3701x 51 ...

The average cost, in dollars, for tuition and fees for in-state students at four-year public colleges over

Question:

The average cost, in dollars, for tuition and fees for in-state students at four-year public colleges over the period 2000–2014 can be modeled by the equation

y = 4.065x² + 370.1x + 3450

where x = 0 corresponds to 2000, x = 1 corresponds to 2001, and so on. Based on this model, for what year after 2000 was the average cost $8605? (Source: The College Board, Annual Survey of Colleges.)

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