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: 3

Answer

$(2,3)$ is a solution of the inequality.

Work Step by Step

The given inequality is $\Rightarrow x+y\lt 7$ Substitute $2$ for $x$ and $3$ for $y$. $\Rightarrow 2+3\lt 7$ Simplify. $\Rightarrow 5\lt 7$ True. Hence, $(2,3)$ is a solution of the inequality.
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