In the set of problem, assume that the data can be modeted by a straight line and that the trend continues indefinitely. Use two data points to find such a line and then answer the question. (See Example 1.)
Finance The approximate number of tax returns examined by the Internal Revenue Service in 1996 was 1.9 million. In 2006. it was 1.2 million.* Let x = 0 correspond to 1996, and estimate the number of examined returns in 2008.
*U.S. Internal Revenue Service, IRS Data Book, Publication 55B.
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