Let f: [0.2] [5,6] be a function. (a) If the restrictions of f to [0, 1] and to [1,2] are injective functions, must f be an injection? Explain. (b) If the restrictions of f to [0, 1] and to [1, 2] are surjective functions, must f be a surjection? Explain.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.4: Definition Of Function
Problem 61E
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Let f: [0.2] [5,6] be a function.
(a) If the restrictions of f to [0, 1] and to [1,2] are injective functions, must f be an injection? Explain.
(b) If the restrictions of f to [0, 1] and to [1, 2] are surjective functions, must f be a surjection? Explain.
Transcribed Image Text:Let f: [0.2] [5,6] be a function. (a) If the restrictions of f to [0, 1] and to [1,2] are injective functions, must f be an injection? Explain. (b) If the restrictions of f to [0, 1] and to [1, 2] are surjective functions, must f be a surjection? Explain.
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