Total Personal Income in the United States (In Billions of Dollars)

Total personal income in the United States (in billions of dollars) for selected years from 1960 to 2002 is given in the following table. ​

Source: Bureau of Economic Analysis, U.S. Department of Commerce
These data can be modeled by an exponential function. Write the equation of this function, with x as the number of years past 1960. If it's necessary round your calculations to four decimal places.
​

A)
B)
C)
D)
E)