Precalculus (6th Edition) Blitzer

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

Chapter 7 - Section 7.5 - Systems of Inequalities - Exercise Set - Page 865: 107


The statement does not make sense.

Work Step by Step

We have to determine the solution of an inequality; a specific boundary against which the region needs to be shaded must be determined. To find that specific boundary, there is a need to substitute the equality symbol in the place of the inequality symbol and plot a graph. Then, according to the type of inequality given in the equation, the region will be shaded which is the required set of solutions. Thus, the provided statement does not make sense. Rather, the statement should be: it is necessary to graph the linear equation with the "equal to" symbol when graphing the equation with the inequality.
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