The recursive formula for the arithmetic sequence is given as follows:
<h3>What is an arithmetic sequence?</h3>
In an arithmetic sequence, the difference between consecutive terms is always the same, called common difference d.
The nth term of an arithmetic sequence is given by:
![a_n = a_1 + (n - 1)d](https://tex.z-dn.net/?f=a_n%20%3D%20a_1%20%2B%20%28n%20-%201%29d)
In which
is the first term.
The recursive formula for the sequence is given by:
![a_n = a_{n-1} + d](https://tex.z-dn.net/?f=a_n%20%3D%20a_%7Bn-1%7D%20%2B%20d)
In the sequence 8, -5, -18, -31,...8,−5,−18,−31, the first term and the common ratio are given as follows:
![a_1 = 8, r = 13](https://tex.z-dn.net/?f=a_1%20%3D%208%2C%20r%20%3D%2013)
Hence, the recursive sequence is given by:
More can be learned about arithmetic sequences at brainly.com/question/6561461
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