Answer
$ y= abs(x) -1$
Work Step by Step
$y = abs(x) +b$ is the formula for a shift up or a shift down. Since we want to shift down a unit, we use $b=-1$.
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 5 - Linear Functions - 5-8 Graphing Absolute Value Functions - Practice and Problem-Solving Exercises - Page 345: 20
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