Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 9 - Review - Page 673: 33

Answer

Please see the graph.

Work Step by Step

Red line: $x+2y\le5$ Purple line: $x\le2$ Black line: $x\ge0$ Orange line: $y\ge0$ To determine what sides of the lines to shade, we use a point not on the line. We can use (1,1) for the lines. Red line: $x+2y\le5$ $1+2*1\le5$ $1+2\le5$ $3\le5$ (true, so we shade the left side of the line) Purple line: $x\le2$ $1\le2$ (true, so we shade the left side of the line) Black line: $x\ge0$ $1\ge0$ (true, so we shade the right side of the line) Orange line: $y\ge0$ $1\ge0$ (true, so we shade above the line) The solution area is the overlap of the four inequalities. The solution area is bounded by the four points at $(0,0)$, $(2,0)$, $(0,2.5)$, and $(2,1.5)$
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