Building and interpreting functions

Question

At the beginning of an environmental study, a forest covered an area of 1500km^2. Since then,the area has decreased by 8.25% each year. Let t be the number of years since the start of the study. Let y be the area the forest covers in km^2. Write and exponential function showing the relationship between y and t.

Answer 1

y = 1500(1 - 0.0825)^t