Final Exam Review 1
Authored by Erin Shevach
Mathematics
9th Grade
CCSS covered
Used 3+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mr. Mahoney has his money invested in a stock portfolio. The value, v (x ), of his portfolio can be modeled with the function v(x)=30,000(0.82)x , where x is the number of years since he made his investment. Which statement describes the rate of change of the value of his portfolio?
Mr. Mahoney has his money invested in a stock portfolio. The value, v (x ), of his portfolio can be modeled with the function v(x)=30,000(0.82)x , where x is the number of years since he made his investment. Which statement describes the rate of change of the value of his portfolio?
It decreases 82% per year.
It decreases 18% per year.
It increases 82% per year.
It increases 18% per year.
Answer explanation
The number in parenthesis is the growth/decay rate. Because it's less than 1, we subtract it from 1 to get the decay percentage. 1 - .82 = .18, which is 18% decrease.
Tags
CCSS.HSF.LE.B.5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The highest possible grade for a book report is 100. The teacher deducts 10 points for each day the report is late. Which kind of function describes this situation?
linear
quadratic
exponential growth
exponential decay
Answer explanation
deducts = minus, and adding/subtracting is considered linear.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the three situations given is best modeled by an exponential function?
I. A bacteria culture triples in size every day.
II. A plant grows by 1 inch every 5 days.
III. The population of a town declines by 8% every 4 years.
I only
II only
I and II
I and III
Answer explanation
Doubling/tripling/increasing by x% means exponential.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The function f is shown in the table. Which type of function best models the given data?
exponential decay function
exponential growth function
linear function with positive rate of change
linear function with negative rate of change
Answer explanation
It's growth because the y values are being multiplied by 4.
Tags
CCSS.HSF-LE.A.1A
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jack said II & III because they coefficients are decreasing
Joe said I & II because they both have 4 terms
Jill said I & III because the exponents are decreasing
Jay said all three because they are polynomials
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
-14 and +3 multiply to -42 and add to -11
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ariel
Attina
Alana
Andrina
Answer explanation
exponents on variables have to be in decreasing order. Constant term (aka no variable) has to be last.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Classlink
Continue with Clever
or continue with
Microsoft
%20(1).png)
Apple
Others
Already have an account?
