7.2 Review Worksheet (continued)
47. The table gives the United States Hispanic population from 1980 to 2000. Find an exponential model for the data. Use the model to predict when the Hispanic population will exceed 120 million.
United States Hispanic Population 10 20 30 Population (millions) 14.6 22.5 35.3 Source: Census 2000 Years After 1970
48. The table gives the number of telecommuters in the United States from 1990 to 2000. Find an exponential model for the data. Use the model to estimate when the number of telecommuters will exceed 100 million. U.S. Telecommuters Years After 1990 0123456 7 8 9 10 Telecommuters (millions) 4.4 5.5 6.6 7.3 9.1 8.5 8.7 11.1 15.7 19.6 23.6 Source: Federal Highway Administration
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