Exploring Exponential Growth: Real-Life Applications

A population of bacteria doubles every 3 hours. If there are initially 500 bacteria, how many will there be after 9 hours?

• 8000

• 1000

• 2000

• 4000

A car's value decreases by 15% each year. If the car is currently worth $20,000, what will its value be after 2 years?

• $14,450

• $12,000

• $16,000

• $18,000

A bank offers an interest rate of 5% compounded annually. If you deposit $1,000, how much money will you have after 3 years?

• 1200.00

• 1100.50

• 1157.63

• 1050.75

A tree grows at a rate of 10% per year. If the tree is currently 4 feet tall, what will its height be after 2 years?

• 4.84 feet

• 6.00 feet

• 4.40 feet

• 5.00 feet

A certain species of fish in a lake grows exponentially. If there are 200 fish now and the population triples every year, how many fish will there be in 2 years?

• 1800

• 1200

• 600

• 4000

A smartphone's battery life decreases by 20% each year. If the battery lasts 10 hours when new, how long will it last after 3 years?

• 7.2 hours

• 4.8 hours

• 6.5 hours

• 5.12 hours

A town's population is 10,000 and is growing at a rate of 8% per year. What will the population be in 5 years?

• 15800

• 12000

• 13500

• 14693

A savings account has an initial balance of $500 and earns 6% interest compounded annually. How much will be in the account after 4 years?

• 500.00

• 700.00

• 631.24

• 600.00

A certain type of plant grows at a rate of 15% per month. If the plant is currently 10 cm tall, how tall will it be after 3 months?

• 20.25 cm

• 12.50 cm

• 18.00 cm

• 15.21 cm

A viral video on social media gains 1,000 views in the first hour and doubles its views every hour. How many views will it have after 5 hours?

• 4000

• 20000

• 16000

• 8000