Algebra-1

Question Analysis
This question is about recognizing whether a given sequence is an arithmetic sequence. The main focus is on verifying the presence of a constant common difference between consecutive terms.

Key Concept Explanation
An arithmetic sequence is defined by having a constant difference between each pair of consecutive terms. If this difference is not consistent throughout the sequence, it is not an arithmetic sequence.

Step-by-Step Solution
Let's check the differences between consecutive terms in 2, 6, 11, 17, ...:
6 − 2 = 4
11 − 6 = 5
17 − 11 = 6
The differences are 4, 5, 6, which are not constant. Therefo...