Answered: True or False? 4. Let f : R → R be a…

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True or False? 4. Let f : R → R be a function defined by f(x) = x^2+1. If B = {2, 5}, then f^(−1)[B] = {1, 2}.

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter3: Functions

Section3.3: Rates Of Change And Behavior Of Graphs

Problem 2SE: If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local...

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True or False?

4. Let f : R → R be a function defined by f(x) = x^2+1. If B = {2, 5}, then f^(−1)[B] = {1, 2}.
5. Let R be an equivalence relation on A = {w, x, y, z}. If wRx, yRz, and wRz, then xRy.

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