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Sequence formulas Practice
Recall arithmetic and geometric sequence formulas.
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What you’ll practice
Identify whether successive terms add a constant or multiply by a constant. The indexing convention determines how the first term enters the nth-term formula.
Where this helps
Finding terms in familiar sequences.
Before you start
Use this topic to practice math you have already learned. The examples show the available kinds of recall tasks; this is not a complete textbook chapter. Check the answer form and any stated conditions.
Try a few examples
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Example 1 of 4
n is a positive integer, a_1 is the first term, and d or r is the constant difference or ratio of the stated sequence.
Choose the exact expression.
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Start practicingSequence formulas
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