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 1 - Solving Linear Equations - 1.4 - Solving Absolute Value Equations - Exercises - Page 33: 32

Answer

The absolute value equation is $|x-2|=8$.

Work Step by Step

The given solutions are $x=-6$ and $x=10$ Minimum value $=-6$ Maximum value $=10$ Halfway point $=2$. Distance from halfway point $=8$. Absolute value equation is $\Rightarrow |x-$halfway point$|=$distance from halfway point Substitute all the values. $\Rightarrow |x-2|=8$ Check $x=-6$. $\Rightarrow |-6-2|=8$ $\Rightarrow |-8|=8$ $\Rightarrow 8=8$ True. Check $x=10$. $\Rightarrow |10-2|=8$ $\Rightarrow |8|=8$ $\Rightarrow 8=8$ True. Hence, the absolute value equation is $|x-2|=8$.
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