Determine if each scenario represents a growth or decay function.

Question

A town with a population of 5,000 grows 3% per year


The population of Boomtown is 475,000 and is increasing at a rate of 3.75% each year


The population of Little Town is 123,000 and is decreasing at a rate of 2.375% each year.


A radioactive element decays at a rate of 5% annually. There are 40 grams of the substance present.

Answer 1

- A town with a population of 5,000 grows 3% per year: Growth function
- The population of Boomtown is 475,000 and is increasing at a rate of 3.75% each year: Growth function
- The population of Little Town is 123,000 and is decreasing at a rate of 2.375% each year: Decay function
- A radioactive element decays at a rate of 5% annually. There are 40 grams of the substance present: Decay function