Question

What is the 31st term of the sequence -108, -90, -72, -54?

Answer 1

432

Explanation:

Arithmetic sequence with first term `a = -108` and common difference `d = 18`.

`n^(th)` term of arithmetic sequence given by:

`x_n = a + (n-1)d`

`x_(31) = -108 + 30*18 = 432`