Part 1 of 5 Next question a Substitute 0 for x and without using a calculator find the country s population in 1968 The country s population in 1968 was million O Points 0 of 5 Use a calculator with a key or a A key to solve the following The exponential function f x 565 1 026 models the population of a country f x in millions x years after 1968 Complete parts a e