Answer
See below
Work Step by Step
We see that this sequence looks like this
$-x, 2x, -3x, 4x$
Thus the next term is $-5x$ and $x=5$ so $-25$
The rule is simply,
$(-1)^n*5n$
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 - 12.3 Analyze Geometric Sequences and Series - 12.3 Exercises - Quiz for Lessons 12.1-12.3 - Page 817: 2
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