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Mathematics, 15.12.2019 18:31 drcarver

Use the scenario to answer the question. tyrone was asked to write the recursive and explicit formula for the sequence {−4,−7,−10,−13,…}. he wrote the recursive formula as a1=−4 and an=−4−3. he wrote the explicit formula as an=−4−3(n−1). where did he make a mistake?
in his recursive formula, he should have added 3 instead of subtracting 3 to get an=−4+3.

in his explicit formula, the −4 is not necessary. he should have written an=−3(n−1).

in his explicit formula, he should have used n−3 instead of n−1 to get an=−4−3(n−3).

in his recursive formula, he should have the term an−1 instead of −4 to get an=an−1−3.

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