# Exponential Functions - Applications - Compound Interest - Growth and Decay

Worksheet (Trigonometry)

## Exponential Functions - Applications - Compound Interest - Growth and Decay Worksheet

This free trigonometry worksheets contains problems on applications of exponential functions. Students must find interest compounded annually, semi-annually, quarterly, and continuously. Other problems involve finding the rate of increase and rate of decrease of bacteria in a culture,

## Lesson:

To use exponential functions to calculate compound interest and rates of increase and decrease

10

2

Yes

## Samples:

Tutor-USA.com Worksheet
Applications on Exponential Functions

A. Find the compound amount at the end of 10 years on an original principal of \$200 at 4%
1) compounded annually
2) compounded semi-annually
3) compounded quarterly
4) compounded continuously

B. What time is required to double a certain amount
1) compounded annually at 6%
2) compounded continuously at 6%

C. There are originally 1 000 bacteria in a culture, and 4 hours later there are 4 000. Find the rate of increase per hour of the bacteria.

D. In a certain chemical reaction, the original concentration of 0.03 is reduced to 0.01 in 4 minutes
1) What is the rate of decrease in concentration per minute?
2) What will be the concentration be in 10 minutes?