Question

Write an explicit formula for a, start subscript, n, end subscripta

n
​
, the n, start superscript, th, end superscriptn
th
term of the sequence 23, comma, 19, comma, 15, comma, point, point, .23,19,15,....

Answer 1

The explicit formula for the nth term of the given sequence is an = 23 - 4(n-1).

Step-by-step explanation:

The given sequence is 23, 19, 15, ...

To find an explicit formula for the nth term of this sequence, we can observe that each term is decreasing by 4 from the previous term.

So, the explicit formula for the nth term can be written as:

an = 23 - 4(n-1)