Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - 4-4 Graphing a Function Rule - Mixed Review - Page 259: 54


z=-2 or z=4

Work Step by Step

First , we could both sides of the equation by 8 , and get the equation /z-1/=3 Based on the property of both negative and positive input value could get positive absolute output value , we could get two conditions of the equations z-1=3 or z-1=-3 and we add both sides of the equation 1 and can get the final answer z=4 or z=-2
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