19. Show that f(x) = x² + 1 is not one-to-one, using values of f (not the horizontal line test).

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
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19. Show that f(x) = x² + 1 is not one-to-one, using values
of f (not the horizontal line test).
Transcribed Image Text:19. Show that f(x) = x² + 1 is not one-to-one, using values of f (not the horizontal line test).
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