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Arithmetic Sequence
An arithmetic sequence is a sequence in which every pair of consecutive terms differs by the same fixed amount. In other words, if we subtract any term from the term that immediately follows it, the result is always the same value. Using subscript notation, a sequence is arithmetic when yields the same number for every integer . For example, is arithmetic because each term is exactly more than the one before it, while a sequence like is not arithmetic because the gaps between successive terms alternate between and .
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Intermediate Algebra @ OpenStax
Ch.12 Sequences, Series and Binomial Theorem - Intermediate Algebra @ OpenStax
Algebra
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Infinite Sequence
Finite Sequence
General Term of a Sequence
Arithmetic Sequence
Geometric Sequence
Annuity
Partial Sum
Summation Notation
Factorial Notation
As an inventory analyst, you record the total number of items restocked at the end of each week. You list the totals so that the first week corresponds to position 1, the second week to position 2, and so on. In algebraic terms, this ordered list of values—which can be thought of as a mathematical relationship whose domain is restricted to the counting numbers ()—is formally defined as a:
In a workplace productivity report, a supervisor lists the number of units produced in each consecutive hour of a shift. Algebraically, this ordered list represents a sequence. True or False: An algebraic sequence is formally defined as a function whose domain is restricted to the set of counting numbers ().
A customer service lead tracks the number of calls answered during each hour of an 8-hour shift. Match each algebraic component of this data record with its practical description.
Identifying Components of Sequential Data
A supervisor at a manufacturing plant maintains a production log that lists the number of units completed during each consecutive hour of a shift. This ordered list of data (e.g., ) represents an algebraic sequence. In this context, each individual numerical value in the list is formally referred to as a(n) ____.
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Common Difference of an Arithmetic Sequence
Sum of the First n Terms of an Arithmetic Sequence
A warehouse supervisor tracks the stock of a specific component and notes that the inventory increases by exactly 15 units every week. Which mathematical term identifies a sequence, such as these weekly inventory levels, where the difference between any two consecutive terms () is always the same fixed amount?
Identifying Sequential Patterns in Annual Raises
A logistics coordinator at a distribution center observes that the number of packages processed increases by exactly units every hour during a peak shift. Because the difference between the number of packages processed in any two consecutive hours remains a constant fixed amount, this numerical pattern is classified as an ____ sequence.
A technician monitors the pressure in a tank every hour. If the sequence of pressure readings (represented as ) is an arithmetic sequence, it means that the difference between any term and the term that immediately follows it () must always be the same fixed value.
Defining Consistent Growth Patterns in Data