Find the domain of the rational function. (Enter your answers as a comma- separated list.) x2 + 9 f(x) = x2 – 4x – 21

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section3.6: Rational Functions
Problem 4E
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Find the domain of the rational function. (Enter your answers as a comma-
separated list.)
x2 + 9
f(x) =
x2 – 4x – 21
The domain of f(x) is all real numbers except x =
Transcribed Image Text:Find the domain of the rational function. (Enter your answers as a comma- separated list.) x2 + 9 f(x) = x2 – 4x – 21 The domain of f(x) is all real numbers except x =
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