Question

Tricky questions :(
A country's population in 1991 was 15 million. In 2001 it was 16 million. Estimate the population in 2005 using exponential growth formula. Round your answer to the nearest million

Answer 1

\[a=\frac{16,000,000-15,000,0002001-1991}{2001-1991}=\frac{1,000,000}{10} =100,000\]\[y=100,000*b^x\]Thus[16,000,000=100,000*b^{10}\]\[b^{10}=160\]