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WorksheetsUnit 8 Quiz - Exponential Functions
Total questions: 10
Worksheet time: 47mins
Name
Class
Date
1.
Is this exponential growth or decay?
a)
Growth
b)
Decay
2.
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? Round to the nearest WHOLE.
a)
9766
b)
9006
c)
9765
d)
5433
3.
Daniel’s Print Shop purchased a new printer for $35,000. Each year it depreciates at a rate of 5%. How much will the printer be worth in 8 years?
a)
$23,219.72
b)
$136.72
c)
$51,710.94
d)
$16,710.94
4.
Which transformed function below shows a shift 2 units to the left, up 5 units, and steepest function (of your options)?
a)
y = 4(x-2)+5
b)
y = 2(x-2)+5
c)
y = 4(x+2)+5
d)
y = 2(x+2)+5
5.
Compare f(x) = 3x- 4 with the basic function f(x) = 3x. How would you describe the movement?
a)
4 units up
b)
4 units to the left
c)
4 units to the right
d)
4 units down
6.
Round to the nearest hundredth.
6(4)0.2
6(4)0.2
a)
1.89
b)
4.80
c)
7.92
d)
5.72
7.
Round to the nearest hundredth.
a)
.68
b)
1.46
c)
1.75
d)
-1.46
8.
Which equation models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.
a)
y=6(0.14)x
b)
y=6(1+14)x
c)
y=6(1.14)x
d)
y=6(0.86)x
9.
Twenty years ago, Mr. Davis purchased his home for $160,000. Since then, the value of the home has increased about 5% per year. How much is the home worth today?
a)
$176,783.29
b)
$424,527.63
c)
$57,357.75
d)
$532,041,076.80
10.
A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?
a)
14327
b)
4309
c)
839
d)
7680
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