On page 641 at the beginning of this chapter we
On page 641 at the beginning of this chapter, we presented a graph showing the price per gallon of gasoline from 1990 until 2012. The actual data for each year are given below.

Determine the trend line using both linear and nonlinear equations. Which would you suggest? Why? Based on your recommendation as the better equation, what cost per gallon would you estimate for 2013 and2014?
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