Exponential Functions Growth and Decay Word Problems
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determine if the equation y = 15(1.35)x represents exponential growth or decay and justify. Hint: Think about the growth and decay equations.
Growth, because the scale factor is greater than 1
Growth, because the scale factor is less than 1
Decay, because the scale factor is greater than 1
Decay, because the scale factor is less than 1
Tags
CCSS.HSF-IF.C.8B
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You have inherited land that was purchased for $30,000 in 1990. The value of the land increased by approximately 5% per year. What is the approximate value of the land in the year 2011?
$83,579
$10,217
$14,963,655
$28,500
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is this exponential growth or decay?
Growth because a=1
Decay because b=0.5
Growth because there is no a
Neither because a=0
Tags
CCSS.HSF-IF.C.8B
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The population of Winnemucca, Nevada, can be modeled by P=6191(1.04)t where t is the number of years since 1990. What percent did the population increase each year?
104%
4%
40%
400%
Tags
CCSS.HSF-LE.A.1C
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Your shiny new boat cost $7650. The depreciation for your boat is 14% per year. Estimate the value of your vehicle in 3 years. What is the equation that models this problem?
y= 7650(.14)3
y= 7650(.86)3
y= 7650(1+.86)3
y = 7650(1.14)3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is y = 54(.20)x growth or decay?
Growth because of the 54
Decay because of the .20
Decay because of the 54
Growth because of the .20
Tags
CCSS.HSF-IF.C.8B
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Cassandra bought an antique dresser for $500. The value of her dresser increases 6% annually.
Write the equation that represents the situation.
Write the equation using this format with no spaces:
y=a(b)^x
Tags
CCSS.HSF.LE.A.2
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