What is an arithmetic sequence?
Arithmetic Sequences

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms is constant.
2.
FLASHCARD QUESTION
Front
How do you find the common difference in an arithmetic sequence?
Back
The common difference (d) is found by subtracting any term from the subsequent term: d = a(n) - a(n-1).
3.
FLASHCARD QUESTION
Front
Given the sequence 29, 21, 13, 5, what is the common difference?
Back
d = -8.
4.
FLASHCARD QUESTION
Front
Is the sequence 17, 9, 1, -7 an arithmetic sequence?
Back
Yes, it is an arithmetic sequence.
5.
FLASHCARD QUESTION
Front
What is the explicit formula for an arithmetic sequence?
Back
The explicit formula is a(n) = a(1) + (n - 1)d, where a(1) is the first term and d is the common difference.
6.
FLASHCARD QUESTION
Front
Select the explicit rule for the sequence: 6, 11, 16, 21,...
Back
a(n) = 6 + 5(n - 1).
7.
FLASHCARD QUESTION
Front
Given the sequence 1, 201, 401, 601, what is the common difference?
Back
d = 200.
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