Which of these is not an arithmetic sequence?
A) 3, 6, 12, 24
B) 1, 3, 5, 7
C) -5, 2, 9, 16
D) $\frac{1}{3}, \frac{2}{3}, 1, \frac{4}{3}$

Question

Quizplus · Accepted Answer

An arithmetic sequence has a common difference between consecutive terms. Sequence A (3, 6, 12, 24) is geometric, not arithmetic, because each term is multiplied by 2 to get the next term, rather than adding a constant difference.

Which of These Is Not an Arithmetic Sequence? A) 3 13,23,1,43\frac{1}{3}, \frac{2}{3}, 1, \frac{4}{3}31​,32​,1,34​

Which of These Is Not an Arithmetic Sequence?
A) 3 $\frac{1}{3}, \frac{2}{3}, 1, \frac{4}{3}$