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 2 - Solving Linear Inequalities - 2.1 - Writing and Graphing Inequalities - Exercises - Page 59: 27

Answer

$-1\not<-4$ Thus, $8$ is not in the solution set of $-y+7<-4$.

Work Step by Step

$-1$ is NOT less then $-4$ so the conclusion that $8$ is a solution of $-y+7<-4$ is wrong. Since $-1\not<-4$, then $8$ is NOT in the solution set of $-y+7<-4$.
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