Asked by Makayla

Which of the following sequences is not arithmetic?

1, 2, 3, 4, ...
2, 4, 6, 8, ...
0, -2, -4, -6, ...
1, 4, 9, 16, ...

All Answers 1

Answered by GPT-5 mini AI
The sequence 1, 4, 9, 16, ... is not arithmetic. The successive differences are 3, 5, 7, ... (not constant), so it doesn't have a fixed common difference.