Answer
See below
Work Step by Step
Determine the differences between the terms:
$$a_2-a_1=6-3=3\\a_3-a_2=9-6=3\\a_4-a_3=12-9=3$$
Since they are constant, the common difference of this sequence is $d=3$.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 12 Sequences and Series - Standardized Test Practice - Gridded Answer - Page 847: 15
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
