Question

Write down in terms of n an expression for the nth term of the following sequences 9 11 13 15 17

Answer 1

2n+7

Explanation:

+2 +2 +2 +2

9 11 13 15 17 so we start with 2n

2 ➡ 9 = +7 6 ➡ 13 = +7

4 ➡ 11 = +7 8 ➡ 15 = +7

So the answer is 2n + 7