Question

Which function gives the correct recursive formula for the sequence?

2, 7, 12, 17, 22, 27


(1 point)
Responses

a1 = 7; an = an−1 + 2

a1 = 7; an = an−1 + 2


a1 = 2; an = an −1 +5

a1 = 2; an = an −1 +5


a1 = 2; an = an −1 + 7

a1 = 2; an = an −1 + 7


a1 = 5; an = an −1 +2

Answer 1

a1 = 2; an = a_{n−1} + 5

Reason: each term increases by 5 (2→7→12→17→22→27).