a. f(x) = (x² − 9) =

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter11: Rational And Irrational Numbers
Section: Chapter Questions
Problem 23CLR
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Find the critical numbers for the following:
a. f(x) = (x² – 9)
b. f(x) = sin 2x cos 2x
[x²+1, if x < 2
c. f(x) =
7-x,
if x > 2
Transcribed Image Text:Find the critical numbers for the following: a. f(x) = (x² – 9) b. f(x) = sin 2x cos 2x [x²+1, if x < 2 c. f(x) = 7-x, if x > 2
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