Answer
Geometric Sequence
$a_{1} = 2$
$r=3$
Work Step by Step
Given Sequence : $2,6,18$
Geometric Sequence.
First Term: $a_{1} = 2$
Common ratio: $r= \frac{a_{n}}{a_{n-1}} = \frac{a_{2}}{a_{1}} = \frac{6}{2} =3$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 11 - Section 11.2 - Arithmetic and Geometric Sequences - Exercise Set - Page 646: 32
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