Answer
positive
Work Step by Step
A teenager grows taller, so the rate that a teenager's height changes must be positive.
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 3 - Introduction to Graphing - 3.5 Slope - 3.5 Exercise Set - Page 196: 7
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