Throughout much of the 20th century, the yearly consumption of electricity
in the US increased exponentially at a continuous rate of 4% per year.
Assume this trend continued and that the electrical energy consumed
in 1900 was 2 million megawatt-hours.
(a) Write a formula for yearly energy consumption, , in millions of megawatt-hours
as a function of time, , in years since 1900.
Get it? . . . is the number of years since 1900.
For the year 1920, we do not enter . . . We enter