Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 5 - Solving Systems of Linear Equations - 5.6 - Graphing Linear Inequalities in Two Variables - Exercises - Page 271: 32

Answer

The error is shaded graph. The correct graph is shown below.

Work Step by Step

The given inequality is $y\leq 3x-2$ Graph $y=3x-2$. Use a solid line because the inequality symbol is $ \leq$. Test $(0,0)$. $\Rightarrow y\leq 3x-2$ $\Rightarrow 0\leq 3(0)-2$ $\Rightarrow 0\leq 0-2$ $\Rightarrow 0\leq -2$ $(0,0)$ is not a solution, shade the half-plane that does not contain $(0,0)$. Hence, the error is shaded graph.
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