
Understanding Geometric Sequences and Common Ratios

Interactive Video
•
Mathematics
•
6th - 7th Grade
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What distinguishes a geometric sequence from an arithmetic sequence?
Arithmetic sequences involve division by a constant.
Geometric sequences have a common difference.
Arithmetic sequences have a common ratio.
Geometric sequences involve multiplication by a constant.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the common ratio of a geometric sequence determined?
By multiplying all terms together.
By dividing a term by its preceding term.
By adding the first and last terms.
By subtracting the first term from the last term.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to verify the common ratio in a geometric sequence?
To determine the sequence's length.
To confirm the sequence is geometric.
To find the sum of the sequence.
To ensure the sequence is arithmetic.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the common ratio in the sequence: 3, 9, 27, 81?
4
3
2
5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a sequence alternates between negative and positive terms, what can be inferred about the common ratio?
The common ratio is greater than one.
The common ratio is negative.
The common ratio is zero.
The common ratio is positive.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you express a common ratio when a sequence is decreasing?
As a decimal greater than one.
As a negative number.
As a whole number.
As a fraction less than one.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the common ratio of the sequence: 2/9, 1/3, 2/3?
1/2
1/3
2/3
3/2
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