
Exponential Growth and Decay Review
Authored by JANET WALKER
Mathematics
9th - 12th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Select the functions that are exponential growth.
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Select all the equations that represent exponential decay.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. What is the growth factor?
40
1.4
1.04
0.04
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The original value of a painting is $1400, and the value increases by 9% each year. Write an exponential growth function to model this situation.
y=1400(1.09)x
y=1.09(1400)x
y=1400(1.9)x
y=1400(.09)x
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the initial value for the function: f(x) = 300(1.16)x?
300
1.16
.16
16
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A beetle population of 346,000 is too large to sustain. The beetles begin to perish at a rate of 8% per week. Write a function, f(x), for every x weeks.
f(x) = 346,000(92)x
f(x) = 92(346,000)x
f(x) = 0.92(346,000)x
f(x) = 346,000(0.92)x
f(x) = 346,000(8)x
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