The line graph shows the cost of inflation. What cost $10,000 in 1984 would cost the amount shown by the graph in subsequent years.

Here are two mathematical models for the data shown by the graph. In each formula, C represents the cost x years after 1990 of what cost $10,000 in 1984.

a. Use the graph to estimate the cost in 2010, to the nearest thousand dollars, of what cost $10,000 in 1984.

b. Use model 1 to determine the cost in 2010. How well does this describe your estimate from part (a)?c. Use model 2 to determine the cost in 2010. How well does this describe your estimate from part (a)?

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Cost (thousands of dollars) 28 24 20 16 12 8 4 $13,100 The Cost of Inflation What cost you $10,000 in 1984 would cost you this much in subsequent years. 1990 1995 2000 2005 2010 Year $23,300 2013