Exponential Growth and Decay Review

Exponential Growth and Decay Review

By Lucia Hernandez

Replace this with the title

​Some text here about the topic of discussion.

Exponential Growth

​y=a (1 + r)^t

• A: known and the initial amount (starting amount)

• R: rate (at work percent is scenario increasing by)

• T: time

• A: known and the initial amount (starting amount)

• R: rate (at work percent is scenario decreasing by)

• T: time

​y= a (1 - r)^t

Exponential Decay

Multiple Choice

Mrs. Clark started a savings account for her daughter. She deposited $200 where her interest rate is 2%.

What kind of scenerio is this?

• Growth

• Decay

Multiple Choice

Mrs. Clark started a savings account for her daughter. She deposited $200 where her interest rate is 2%.

Select a function that represents this scenerio:

• y=200(1.2)^t

• y=20(200)^t

• y=200(1.02)^t

• y=200(.98)^t

Multiple Choice

Mr. Abiog bought a baseball card valued at $125. The value of the card increases at a rate of 6% each year. Select a function that matches this scenerio.

• y=6(1.25)^t

• y=125(1.60)^t

• y=125(.94)^t

• y=125(1.06)^t