Which term describes the progression of numbers in a fixed order, not the total of terms?

Which term describes the progression of numbers in a fixed order, not the total of terms?

• A. Series
• B. Rule
• C. Sequence
• D. Set

Answer: (C)

Key idea: this describes an ordered list of numbers where the position of each term matters. A sequence is just that list—the progression of numbers in a fixed order—without implying any adding of terms. A series, in contrast, is the sum of the terms of a sequence, so it focuses on totals rather than the order itself. A rule might tell you how to generate terms, but the description here emphasizes the sequence of terms, not a summation. A set is unordered, so it doesn’t convey any fixed order. So the term that fits is sequence.

Key idea: this describes an ordered list of numbers where the position of each term matters. A sequence is just that list—the progression of numbers in a fixed order—without implying any adding of terms. A series, in contrast, is the sum of the terms of a sequence, so it focuses on totals rather than the order itself. A rule might tell you how to generate terms, but the description here emphasizes the sequence of terms, not a summation. A set is unordered, so it doesn’t convey any fixed order. So the term that fits is sequence.