Year2000200220042006Number109141182233Year2008201020122014Number270296326355YearNumber2000109200214120041822006233YearNum

Question

3 years ago

12

Year2000200220042006Number109141182233Year2008201020122014Number270296326355YearNumber2000109200214120041822006233YearNum

ber2008270201029620123262014355(a) Use the regression capabilities of a graphing utility to find a mathematical model of the formy=at2+bt+cy=at2+bt+c for the data. In the model, y represents the number of subscribers (in millions) and t represents the year, with t=0 corresponding to 2000. (b) Use a graphing utility to plot the data and graph the model. Compare the data with the model. (c) Use the model to predict the number of cell phone subscribers in the United States in the year 2024.

Mathematics