Exponential Growth and Decay

Name the formula:

y = a(1 + r)^t

• Exponential Growth

• Exponential Decay

• Compound Interest

• Continuously Compounded Interest

Name the formula:

y = a(1 - r)^t

• Exponential Growth

• Exponential Decay

• Compound Interest

• Continuously Compounded Interest

• Exponential Growth

• Exponential Decay

• Compound Interest

• Continuously Compounded Interest

In 2010, the population of Peabody was 54, 894. If the population rose by an average of 2% each year since then, which equation models the population of Peabody in 2021?

Danielle deposits $1700 into an account that pays 18% annual interest compounded continuously. What is Danielle's balance after 4 years?

You want to put $1000 into an account that will make the most money in interest.  Which one should you choose?

• 4% interest compounded annually

• 4% interest compounded monthly

• 4% interest compounded daily
  

• 4% interest compounded continuously

In 2015, there were 5,897 computer viruses in Jenna's computer. Each year after, the number of viruses increased by about 73%. How many computer viruses are there currently running loose in Jenna's computer in 2021?

Name the formula:

y=a(1+ r)^t

• Exponential Growth

• Simple Interest

• Compound Interest

• Exponential Decay

What does the t represent in y=a(1+ r)^t

• initial amount

• rate

• time

• slope

Is this exponential growth or decay?

• Growth

• Decay