Question

The third term in a sequence is 11.

The term-to-term rule is "take away 4".
Write an expression, in terms of n, for the nth term of the sequence.

Answer 1

Nth term = 19 - 4(n-1)

Explanation:

First term be A

Nth term = A - 4(n-1)

3rd term = 11 = A - 4*2 = A - 8

A = 19

Nth term = 19 - 4(n-1)