Question

Which of the following is an arithmetic sequence?

© 0, 2, 4, 6, ...
O 1, 2, 4, 8, ...
O 1, 4, 8, 13, ...

Answer 1

The first one

Arithmetic sequence formula is a1 + (n - 1)d

Where a1 is the first term in the sequence, and d is the difference between the two terms.

Find the third term in the first sequence with the equation: 0 + (3 - 1)(4 - 2) = 2(2) = 4 ✅

Fourth term: 0 + (4 - 1)(6 - 4) = 3(2) = 6 ✅

The others don’t work because their differences are not consistent