Determine whether the following scenario represents exponential growth or decay.

A: A car depreciates at a rate of 15.2% per year.
B: The amount of a certain medication in a person's bloodstream drops by 1/2 every hour.
C: A town is losing its population at a rate of 5.3% every year.
D: Money invested in a savings account earns an annual rate of 4.3%.

1 Exponential Growth
2 Exponential Decay

3 answers

B: The amount of a certain medication in a person's bloodstream drops by 1/2 every hour. - 2 Exponential Decay
C: A town is losing its population at a rate of 5.3% every year. - 2 Exponential Decay
D: Money invested in a savings account earns an annual rate of 4.3%. - 1 Exponential Growth
What’s a?
A: A car depreciates at a rate of 15.2% per year. - 2 Exponential Decay