The document provides a table of the total personal income in the United States for selected years from 1959 to 2004. It then asks three questions: (1) to write the exponential function equation to model the total personal income data with years after 1959 as the independent variable x, (2) to predict what the total personal income will be in 2009 using the model, and (3) to determine what year the model predicts the total personal income will reach $23 trillion.