Exponential and Logarithms Review

Rewrite each equation in logarithmic form.

• A

• B

• C

• D

Rewrite log₂8 = 3 in exponential form

• 2⁸ = 3

• 2³ = 8

• 3² = 8

• 8³ = 2

Solve the equation.

• A
• B
• C
• D

Does the graph represent an exponential growth or an exponential decay function?

• Exponential Growth
• Exponential Decay

A collectible car has been going up in price by 10% each year. If the car is already worth $29,000, how much will the car be worth in 5 years?

• $0.29
• $2,900,000,000
• $46,704.79
• $145,000

The amount of ibuprofen (medicine for headaches) breaks down by 30% each hour. If a person took a 200 milligram ibuprofen, how much will be left after 3 hours?

• 5.4 mg
• 68.6 mg
• .0054 mg
• 2,400,000 mg

Audrey deposited $2,800 in a

savings account that pays 2.65% interest compounded annually.

What is the total value of the account after 7 years?

• $562.57

• $3362.57

• $14,514.15

• $2,569,680

Kennedy won $3,000 from a radio contest. If she puts this money in a bank account that earns 2.9% interest compounded quarterly, how much interest will she earn in 10 years?

• $915.59                Rome
• $933.28             Sydney
• $979.81               Dublin
• $1,005.09              Paris

Evaluate.
log₆(¹/₂₁₆)

• 3
• ¹/₃
• -¹/₃
• -3

Rewrite the equation in logarithmic form.

• A
• B
• C
• D