Math I Lab LT 16 Arithmetic Sequences

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•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is an arithmetic sequence?
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+1) - a(n).
3.
FLASHCARD QUESTION
Front
Given the sequence: 5, 10, 15, 20, ..., what is the common difference?
Back
d = 5.
4.
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.
5.
FLASHCARD QUESTION
Front
Find the 10th term of the arithmetic sequence: 3, 7, 11, 15, ...
Back
a_10 = 3 + (10-1)4 = 39.
6.
FLASHCARD QUESTION
Front
Is the sequence 2, 4, 6, 8, ... arithmetic?
Back
Yes, the common difference is 2.
7.
FLASHCARD QUESTION
Front
What is the 5th term of the sequence: 12, 9, 6, 3, ...?
Back
a_5 = 12 + (5-1)(-3) = 0.
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