Exponential Decay Problems
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Anthony Clark
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20 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The population of a town is 2500 and is decreasing at a rate of 3.5% per year. Use an exponential function to find the population of the town after 5 years.
Round to the nearest whole number (you can't have a fraction of a person).
Tags
CCSS.HSF-LE.A.1C
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Kathy plans to purchase a car that depreciates at a rate of 12% per year. The initial value of the car is $21,000. Use an exponential function to find the value of the car after 3 years.
Round your answer to 2 decimal places.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A population of fish starts at 8,000 and decreases by 6% per year. Use an exponential function to find the population of fish in 10 years.
Round to the nearest whole number.
Tags
CCSS.HSF-LE.A.1C
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Initial amount
Rate of growth or decay
Time
End amount
Tags
CCSS.HSF-IF.C.8B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which represents exponential decay?
A
B
C
D
Tags
CCSS.HSF-IF.C.7E
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The population of Townville is decreasing at a rate of 6% each year. If the starting population was 7,000 what equation represents the current population after x number of years?
Tags
CCSS.HSF.LE.A.2
7.
LABELLING QUESTION
1 min • 2 pts
At a certain point in time, a fossil has 3 picograms of carbon-14. Complete the table with the missing mass of carbon-14 and years
2.38
11,460
1.5
Tags
CCSS.HSF.LE.A.4
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