Question

{-1, 4, 9, 14., ...): What is the 10th term in the sequence?

Answer 1

19

Explanation:

The answer is 19 because the first number is -1. Then they add +5 to -1 which gave them +4 + +5 = +9 + 5 = 14 + 5 more = 19. So, basically it is + 5 every time.

Hopefully this helps.