Exponential Growth and Decay Factors and Rates

A house was just purchased for $300,000. The value of the home is expected to grow exponentially at a rate of 12.7% per year. Which function represents this situation?

The population of a small town is currently 15,000 people. The town has had limited growth and the population is actually declining at a rate of 8.5% each year. Which function below represents this situation?

Is the following a rate or a factor?

• Rate

• Factor

• Not enough information

Is the following a growth rate or a decay rate?

• Growth Rate

• Decay Rate

• Not enough information

Is the following a growth factor or a decay factor?

• Growth Factor

• Decay Factor

• Not enough information

Is the following a growth factor or a decay factor?

• Growth Factor

• Decay Factor

• Not enough information

When will a multiplier be a decay factor?

• When the number is greater than 1

• When the number is greater than or equal to 1

• When the number is less than 1

• When the number is less than or equal to 1

• When the number is equal to 1

Is the following a growth rate or a decay rate?

• Growth Rate

• Decay Rate

• Not enough information

When will a multiplier be a growth factor?

• When the number is greater than 1

• When the number is greater than or equal to 1

• When the number is less than 1

• When the number is less than or equal to 1

• When the number is equal to 1

Decay Factor

• 1 + r

• 1 - r