Warm Up/Review

• Function and Inverse– Which of the below have an inverse that exists as

a function?

• Graph each of the below (identify the Domain and Range):

Use the Interest Rate formula to solve the below:

You invest $2200 in stock that is projected to grow at a rate of 12.5% compounded monthly. How much will this investment

be worth in 6 years?

Depreciation• Depreciation is a business tax deduction given

for the loss in value of some type of equipment

• Formula similar to Int Rate Formula – only it is a Exponential Decay:

• Example: Your business purchases a Helicopter for $200,000. How much will it be worth in 12 years if it depreciates at a rate of 20% per year?

Solving for Exponents

• Exponential Functions with the same base must have exponents that are equal.

• Examples: Solve each of the below for x: