Exponential Growth and Decay Quiz

If a car depreciates in value by 15% each year and is initially worth $20,000, what is the exponential decay formula for its value over time?

A population of 1,000 deer in a park grows by 10% each year due to conservation efforts. What is the correct exponential growth formula for the deer population over time?

A radioactive substance decreases by 5% of its mass every year. If the initial mass is 200 grams, what is the exponential decay formula for its mass over time?

A savings account with an initial deposit of $500 grows at an annual interest rate of 4%. What is the exponential formula for the amount of money in the account after x years?

A species of fish in a lake increases by 20% each year. If the initial population is 2,000 fish, what is the exponential growth formula for the fish population over time?

A certain medication in the bloodstream decreases by 30% every hour. If the initial dose was 100 mg, what is the exponential decay formula for the medication concentration over time?

A tree species grows in height by approximately 3% each year. If a sapling is initially 2 meters tall, what is the exponential growth formula for the height of the tree over time?