Question

In 2003, 550,000 acres of farmland in a region were devoted to growing nuts. By 2012 the number of acres used to grow nuts had increased to 810,000. Find the average rate of change in the number of acres in a region used to grow nuts from 2003 to 2012

Answer 1

$Rate of change =\frac{Increase in acres}{Number of years}$

$Rate of change =\frac{810,000-550,000}{2012-2003}$

$Rate of change =\frac{260,000}{9}$

Rate of change = 28,888.88

Hence, the average rate of change in the number of acres is 28,889 per year approximately.