Answer
Makes sense.
Work Step by Step
The statement makes sense because it is easy and logical to plug in $(0,0)$ because then we can just check if the terms containing no variables (the constants) satisfy the requirements.
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.5 - Page 574: 106
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