Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 3 - Review - Page 197: 112

Answer

Please see the graph.

Work Step by Step

Red line: $2x\lt3y+8$ Blue line: $y\ge-2$ Let's use the point $(0,0)$ to determine what sides of the lines to shade. Red line: $2x\lt3y+8$ $2x\lt3y+8$ $2*0 \lt 3*0+8$ $0 \lt 0+8$ $0 \lt 8$ (true) We'll shade the side of the red line that does have $(0,0)$ on that side. We have a "less than" sign, so we'll use a dotted line. Blue line: $y\ge-2$ $y \ge -2$ $0 \ge -2$ (true) We'll shade the side of the blue line that doesn't have $(0,0)$ on that side. We have a "greater than or equal to" sign, so we'll use a solid line. The intersection of the two areas is the area that is shaded blue and red.
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