Question
A car is sold for $22,000. After one year, the value of the car is $16,500. Write an exponential function y to determine the value of the car after x years if the rate of decrease is the same each year.
Answers
oobleck
since 16500/22000 = 0.75,
y = 22000 * 0.75^x
y = 22000 * 0.75^x