Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 8 - Section 8.2 - Inconsistent and Dependent Systems and Their Applications - Exercise Set - Page 904: 39


second student gave a better explanation.

Work Step by Step

Clearly, the second student gives a better way of expressing the solution because the expression also gives the relations among the variables. Simply saying that there are an infinite number of solutions, does not clearly state which solutions are allowed and which are not.
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