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Sequences Practice
By Michael Gilmartin
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Last updated almost 6 years ago
10 questions
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Question 1
1.
What is the common ratio in the geometric sequence that starts with 81, 54, 36, . . . ?
Question 2
2.
What is the 5th term in the sequence described by u
n
= u
n - 1
+ 4, where u
1
= -3?
-768
-9
Question 3
3.
Which of the following are correct about the sequence and rule in #2?
The sequence is arithmetic.
The sequence is geometric.
The rule is recursive.
The rule is explicit.
Question 4
4.
An arithmetic sequence has u
5
= 12 and u
8
= -9. What is the common difference?
-21
-0.75
-7
-3
Question 5
5.
A geometric sequence has the following consecutive terms: 8, p, 50. What two values could p equal?
Question 6
6.
Given an arithmetric sequence with u
4
= 84 and u
9
= 239, find u
1
.
Question 7
7.
A sequence has a rule of u
n
= 7(2)
n - 1
. Which of the following are correct?
The rule is recursive.
The rule is explicit.
The sequence is arithmetic.
Question 8
8.
Using the rule in #7, what is u
6
? Enter the value only.
Question 9
9.
In geometric sequences, the terms are always increasing.
True
False
Question 10
10.
In a theater, the first row contains 14 seats, the second row contains 16, the third row contains 18, and so on. How many seats are in the 10th row?
28
30
32
34
13
324
The sequence is geometric.