Question

What is the 15th term of the arithmetic sequence described by this explicit formula?

an= 63+ (n-1)(-7)

Answer 1

-35

Explanation:

Answer 2

- 35

Explanation:

To find the 15 th term, substitute n = 15 into the formula, that is

`a_(15)` = 63 + (15 - 1)(- 7) = 63 + (14 × - 7) = 63 - 98 = - 35