Mastering Exponential Growth: Graphs & Equations Quiz

A bacteria culture doubles in size every 3 hours. If the initial population is 500, how many bacteria will there be after 12 hours?

• 2000

• 10000

• 4000

• 8000

A car's value decreases by 20% each year. If the car is currently worth $15,000, what will its value be after 3 years?

• $7,680

• $5,000

• $12,000

• $10,000

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

• $1,500.00

• $1,200.00

• $1,100.00

• $1,276.28

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

• 4.00 meters

• 2.50 meters

• 3.20 meters

• 2.93 meters

A certain species of fish in a lake triples in population every year. If there are currently 200 fish, how many will there be in 3 years?

• 5400

• 600

• 1200

• 8000

The population of a town is 10,000 and is increasing by 8% each year. What will the population be in 5 years?

• 14693

• 15800

• 13500

• 12000

A certain investment grows exponentially. If it is worth $2,000 now and will be worth $5,000 in 6 years, what is the annual growth rate?

• 15.75%

• 10.50%

• 22.18%

• 30.00%

A smartphone's battery life decreases by 15% each year. If the battery lasts 24 hours when new, how long will it last after 2 years?

• 15 hours

• 10 hours

• 17.34 hours

• 20 hours

A viral video is viewed by 1,000 people on the first day and the views double each day. How many views will it have on the 5th day?

• 16000

• 4000

• 8000

• 20000

A population of rabbits increases by 50% every month. If there are 80 rabbits now, how many will there be in 4 months?

• 405

• 160

• 240

• 320