Determine if the sequence is arithmetic. If the sequence is arithmetic, find the common difference.
-an = n(n - 3)
A)yes, 1
B)yes, 3
C)no
D)yes, -3

Question

Quizplus · Accepted Answer

The sequence is not arithmetic because the difference between consecutive terms changes as n increases. An arithmetic sequence has a constant difference between its terms, but in this sequence, the difference depends on n, making it non-arithmetic.

Determine If the Sequence Is Arithmetic