Sri Lanka is the island that experienced about linear population growth from 1950 to 2000. On the other hand, Afghanistan was torn by warfare in 1980s and not experienced linear nor near-linear growth
a. Table provides population of these two countries, in millions. Which of these two countries is A and which is B. Describe.
b. Find approximate rate of change of linear function? What rate of change represents in practical terms?
c. Evaluate population of Sri Lanka in 1988. Make the thought process clear.
Year 1950 1960 1970 1980 1990 2000
Pop of country A 8.2 9.8 12.4 15.1 14.7 23.9
Pop of country B 7.5 9.9 12.5 14.9 17.2 19.2