Exponential Functions and Sequences Review
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the Range of this function?
y> 0
x> 0
All Real Numbers
y= 1
Tags
CCSS.8.F.A.1
CCSS.HSF.IF.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A new savings account is opened with $400 and gains 3% every year. What is the exponential function?
f(x)=400(1+3)x
f(x)=400(1-0.03)x
f(x)=400(1+0.03)x
f(x)=400(0.03)x
Tags
CCSS.HSF.LE.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify the y-intercept (initial value) in the function f(x)=13(.27)x
Tags
CCSS.HSF.LE.B.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In an exponential function, what does the 'a' represent?
SLOPE
RATE OF CHANGE
Y-INTERCEPT
COMMON RATIO
Tags
CCSS.HSF.LE.B.5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is the following function and example of decay or growth?
f(x)=2(0.85)x
Exponential Decay
Exponential Growth
Tags
CCSS.HSF-IF.C.8B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The amount of ants in a colony, f, that is decaying can be modeled by f(x) = 800(.87)x, where x is the number of days since the decay started. By what percentage is the colony decaying?
87%
13%
800%
8.7%
Tags
CCSS.HSF-IF.C.8B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The amount of ants in a colony, f, that is decaying can be modeled by f(x) = 800(.87)x, where x is the number of days since the decay started. Suppose f(20) = 49. Which of the following is true?
After 20 days, there are 49 ants in the colony.
After 49 days there are 20 ants in the colony.
The amount of ants times 20 is 49.
After 20 days the amount of ants remaining decreases by 49.
Tags
CCSS.HSF-IF.C.8B
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