Unit 9 Review: Exponential Functions
Authored by Rachel Silva
Mathematics
9th Grade
CCSS covered
Used 5+ times
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15 questions
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1.
MATH RESPONSE QUESTION
5 mins • 6 pts
The average attendance at a local high school this year was 950 students.
Each year, the attendance decreases at a rate of 0.5% per year.
What is the function models the average attendance of the local high school over x years?
[Write you answer in the form: a(b)x , where a and b are real numbers.]
Mathematical Equivalence
ON
Tags
CCSS.HSF.LE.A.2
2.
MATH RESPONSE QUESTION
2 mins • 6 pts
The population of bacteria in a Petri dish is increasing exponentially.
At noon, there were 32,600 bacteria in the dish.
An hour later, there were 34,556 bacteria.
Write a function in the form a(b)x to model this situation.
Mathematical Equivalence
ON
Tags
CCSS.HSF.LE.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
The equation f(t) = 6000(0.9975)t models the value of a car over time, t.
In the equation, what does the 6000 represent?
The number of years the car has been owned
The current value of the car
The original price of the car
The annual percent decrease in value of the car
Tags
CCSS.HSF.LE.B.5
4.
DROPDOWN QUESTION
3 mins • 6 pts
We know if we see a table, M-4-1-3 is for linear functions, M-4-1-6 is for quadratic functions, but what was exponential in the spreadsheets?
(a)
Tags
CCSS.HSF.LE.A.2
5.
DRAG AND DROP QUESTION
3 mins • 6 pts
We focus on which axis when talking about domain?
(a)
Tags
CCSS.8.F.A.1
CCSS.HSF.IF.B.5
6.
MULTIPLE CHOICE QUESTION
3 mins • 7 pts
The exponential function is y=abx what does a represent and what does b represent? Is the function growing or decaying?
A
B
C
D
Tags
CCSS.HSF.LE.A.2
7.
MULTIPLE CHOICE QUESTION
5 mins • 7 pts
In an exponential function, what does the 'a' represent?
Tags
CCSS.HSF.LE.B.5
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