\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
A company's profit is recorded over a 5-year period. At the start of the period (\(t=0\) years), the profit was \(\dollar\)20,000. After 5 years (\(t=5\) years), the profit was \(\dollar\)80,000.
Calculate the average rate of change of profit (in dollars per year) over this period.
Average rate of change \(=\)
\(\dollar\)/year