Question

Which of the following is an arithmetic sequence where a₁ = 9 and d= 7?

A) 9, 16, 23, 30, 37, ...
B) 0, 9, 18, 27, 36,...
C) 7, 16, 25, 34, 43,...
D) 0, 7, 14, 21, 28, ...

Answer 1

Option A

Explanation:

Arithmetic sequence:

In a arithmetic sequence, difference between any two consecutive term is constant.

a₁ = 9 & d = 7

t₁ = 9

t₂ = a₁ + d

= 9 + 7

= 16

t₃ = t₂ + d = 16+ 7

= 23

t₄ = t₃ + d

= 23 + 7

= 30

t₅ = t₄ + d

= 30 + 7

= 37

9,16,23,30,37,.......