Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 7 - Algebra: Graphs, Functions, and Linear Systems - Chapter 7 Test - Page 484: 18

Answer

See below:

Work Step by Step

Step I: In the given above expression, replace inequality with equality, and draw it:\[\] \[y=-1\]; It is the line parallel to the x-axis, 1-unit negative intercept on the y-axis. Step II: Put\[x=0,\text{ and }y=0\], in the inequality equation. \[0\ge -1\]; it is true. Therefore, the region will contain the origin.
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