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Exploring Exponential Growth: Equations & Applications

Authored by Anthony Clark

English, Mathematics

8th Grade

CCSS covered

Exploring Exponential Growth: Equations & Applications
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A population of rabbits doubles every year. If there are currently 50 rabbits, how many will there be in 5 years? Write an exponential equation to represent this situation.

1600

400

1000

800

Tags

CCSS.HSF.LE.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A bacteria culture grows by 30% each hour. If you start with 200 bacteria, how many will there be after 4 hours? Write the exponential equation and calculate the result.

1000

400

800

571

Tags

CCSS.HSF.LE.A.4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A tree grows 15% taller each year. If the tree is currently 10 feet tall, how tall will it be in 3 years? Write the exponential equation and find the height.

12.5 feet

20 feet

18.75 feet

15.21 feet

Tags

CCSS.HSF-LE.A.1C

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A car's value depreciates by 20% each year. If the car is worth $15,000 now, what will its value be in 4 years? Write the exponential equation and solve for the value.

$10,500.00

$4,500.00

$8,000.00

$6,144.00

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A savings account earns 5% interest compounded annually. If you deposit $1,000, how much will you have in 6 years? Write the exponential equation and calculate the total amount.

$1,200.00

$1,340.10

$1,100.50

$1,500.00

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A certain species of fish in a lake increases its population by 25% each year. If there are currently 400 fish, how many will there be in 2 years? Write the exponential equation and find the population.

1000

625

500

800

Tags

CCSS.HSF-LE.A.1C

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A smartphone's battery life decreases by 10% each year. If the battery lasts 24 hours now, how long will it last in 3 years? Write the exponential equation and calculate the remaining battery life.

17.54 hours

15 hours

20 hours

10 hours

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