Answer
(a) Yes
(b) No
Work Step by Step
(a) It is, for the area is equal to $s^2$ and is thus a function of the length of one of its sides.
(b) No, because to know the area of the rectangle, one must know the length of two non-parallel sides.
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 1 - Linear Functions and Change - Review Exercises and Problems for Chapter One - Page 53: 2
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