Algebra-1

To determine which sequence is not arithmetic, we need to check if the difference between consecutive terms is constant for each sequence:

A. Differences: 5.4 − 4.8 = 0.6,  6.0 − 5.4 = 0.6,  6.6 − 6.0 = 0.6

Analysis: The difference between consecutive terms is consistently 0.6. This sequence is arithmetic.

B. Differences: −1.8 − (−2.3) = 0.5,  −1.3 − (−1.8) = 0.5,  1.8 − (−1.3) = 3.1

Analysis: The difference between consecutive terms is 0.5, 0.5, and then 3.1. The difference is no...