Thomas' Calculus 13th Edition

Published by Pearson
ISBN 10: 0-32187-896-5
ISBN 13: 978-0-32187-896-0

Chapter 1: Functions - Practice Exercises - Page 37: 20


(a) $ x\in(-\infty,1]$ (b) $ y\in [-2,\infty)$

Work Step by Step

Function: $ y=-2+\sqrt {1-x}$ (a) Domain: $1-x\geq0$, $ x\leq1$, $ x\in(-\infty,1]$ (b) Range: $ y\geq -2$, $ y\in [-2,\infty)$
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