Sequences And Nth Term
Akopọ
A sequence is a list of numbers that follows a rule. Spot the rule and you can predict any term you like, even the hundredth, without writing out all the ones before it. The nth-term formula is the compact piece of algebra that captures that rule and unlocks the whole pattern.
In this lesson you will continue sequences, recognize their patterns, and find the nth term of linear sequences and simple quadratic sequences. The nth term is a powerful shortcut: one formula generates every term and answers any question about the sequence at once.
Awọn Afojusun
- Continue sequences, recognize patterns, and find and use the nth term of linear and simple quadratic sequences.
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- What is the nth term of 5, 8, 11, 14, ...? A. 3n B. 3n + 2 C. 3n + 5 D. 5n + 3 Answer: B
- Using the nth term 3n + 2, what is the 50th term? A. 150 B. 152 C. 155 D. 102 Answer: B
- What is the nth term of 3, 6, 11, 18, ...? A. n^2 B. n^2 + 2 C. 2n + 1 D. 3n Answer: B
- A sequence has a constant second difference. The sequence is: A. Linear B. Quadratic C. Constant D. Random Answer: B
- What is the next term in 5, 8, 11, 14, ...? A. 15 B. 16 C. 17 D. 18 Answer: C
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Abala ìwé ẹ̀kọ́
Sequences
Write the first few terms of a sequence
"Intermediate Algebra: Sequences" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/intermediate-algebra/pages/12-1-sequences. Access for free at https://openstax.org/books/intermediate-algebra/pages/1-introduction
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Abala ìwé ẹ̀kọ́
Arithmetic Sequences
Determine if a sequence is arithmetic
"Intermediate Algebra: Arithmetic Sequences" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/intermediate-algebra/pages/12-2-arithmetic-sequences. Access for free at https://openstax.org/books/intermediate-algebra/pages/1-introduction
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