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 4 - Writing Linear Functions - 4.7 - Piecewise Functions - Exercises - Page 222: 12

Answer

$g(5)=5$

Work Step by Step

We have $x=5$. Use the third equation. $g(x)=2x-5,$ if $x \geq 2$ Substitute $5$ for $x$. $\Rightarrow g(5)=2(5)-5$ Simplify. $\Rightarrow g(5)=10-5$ $\Rightarrow g(5)=5$
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