Q. Use the initial term and the recursive formula to find an explicit formula for the sequence a. Write your answer in simplest form.a=−49a=a−16a= ______
Given Sequence Type: We have:Initial term a1=−49Recursive formula: an=an−1−16Is the given sequence geometric or arithmetic?The recursive formula an=an−1−16 corresponds to an=an−1+d.Hence, the given sequence is arithmetic.
Common Difference: Recursive formula: an=an−1−16 Find the common difference in the arithmetic sequence. Compare an=an−1−16 with an=an−1+d to find d. So, d=−16.
Explicit Formula: Explicit formula for arithmetic sequence:an=a1+d(n−1)Here, a1 is the first term, and d is the common difference. We have:a1=−49d=−16Find the explicit formula.Substitute −49 for a1 and −16 for d in an=a1+d(n−1).a10a11a12a13Explicit formula is: a14
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