ALG 1 - PRACTICE TEST #1 on Absolute Value Functions & Sequenc

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What is a recursive formula?

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What is an explicit formula?

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Front

What is the difference between recursive and explicit formulas?

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Recursive formulas use previous terms to define the next term, while explicit formulas define the nth term directly without reference to previous terms.

Front

Write the explicit formula for the sequence 10, -2, -14, -26, ...

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What is the common difference in the sequence 10, -2, -14, -26, ...?

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The common difference is -12, as each term decreases by 12.

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Write the explicit formula for the sequence 216, 72, 24, 8, ...

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What is the common ratio in the sequence 216, 72, 24, 8, ...?

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