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Unit 4 Lesson 11
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Jonathan Barron
Used 5+ times
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13 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
The number of people who carry cell phones increases by 29% each year. In 2002, there were 180 million cell phone users.
----- ----- ----- ----- ----- -----
Write an equation to model the number of people with cell phones after 2002 in the format:
y = a(b)^t
----- ----- ----- ----- ----- -----
(syntax: include space before and after "=" sign in equation)
Answer explanation
Final= y
Initial= 180
Rate= 1 + 29/100= 1.29
Time= t
2.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
The number of people who carry cell phones increases by 29% each year. In 2002, there were 180 million cell phone users.
----- ----- ----- ----- ----- -----
y = 180(1.29)^t
Find the approximate number of cell phone users in 2010.
----- ----- ----- ----- ----- -----
(round your answer appropriately)
Answer explanation
Final= ?
Initial= 180
Rate= 1 + 29/100= 1.29
Time= 2010 - 2002
----- ----- ----- -----
Round down because cannot have a decimal of a person
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the sequence: 4, 8, 16, 32, ...
----- ----- ----- ----- ----- -----
Is the sequence geometric?
Yes
No
Answer explanation
Geometric sequence= terms related by multiplication via a common ratio
----- ----- ----- ----- ----- -----
Arithmetic sequences=terms related by addition via a common difference
4.
MATH RESPONSE QUESTION
3 mins • 1 pt
Consider the sequence: 4, 8, 16, 32, ...
----- ----- ----- ----- ----- -----
What is the common ratio?
Mathematical Equivalence
ON
5.
MATH RESPONSE QUESTION
3 mins • 1 pt
Consider the sequence: 4, 8, 16, 32, ...
----- ----- ----- ----- ----- -----
What is the 5th term?
Mathematical Equivalence
ON
6.
MATH RESPONSE QUESTION
1 min • 1 pt
Consider the sequence: 4, 8, 16, 32, ...
----- ----- ----- ----- ----- -----
What is the 6th term?
Mathematical Equivalence
ON
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the sequence: 3, 6, 9, 12, ...
----- ----- ----- ----- ----- -----
Is the sequence geometric?
Yes
No
Answer explanation
Geometric sequence= terms related by multiplication via a common ratio
----- ----- ----- ----- ----- -----
Arithmetic sequences=terms related by addition via a common difference
----- ----- ----- ----- ----- -----
1st= 3
2nd= 3 + 3= 6
3rd= 6 + 3= 9
4th= 9 + 3= 12
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