The line graph shows the cost of inflation. What cost $10,000 in 1967 would cost the amount shown by the graph in subsequent years. (The symbol on the horizontal axis shows that there is a break in value between 0 and 80. Thus, the first tick mark on the horizontal axis represents 1980.)
Here are two mathematical models for the data shown by the graph. In each formula, C represents the cost x years after 1980 of what cost $10,000 in 1967.
Use these models to solve Exercises 99–102.
a. Use the graph to estimate the cost in 2000, to the nearest thousand dollars, of which cost $10,000 in 1967.
b. Use model 1 to determine the cost in 2000. How well does this describe your estimate from part (a)?
c. Use model 2 to determine the cost in 2000. How well does this describe your estimate from part (a)?
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