Question

Write an e explicit formula for an, the nth term of the sequence 22, 19, 16, ...
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Answer 1

`a_(n) = 22 + (-3)(n - 1)`

Explanation:

The first term is 22. It looks like each term after that is the term before, plus a negative 3.

a-sub-one = 22

common difference = d= -3

Formula for
`a_(n)`:

`a_(n) = 22 + (-3)(n - 1)` = 25 - 3n