Exploring Exponential Growth: Equations & Applications
Authored by Anthony Clark
English, Mathematics
8th Grade
CCSS covered
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10 questions
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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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