Let's define the function f: R+R by f(x) = 4x - 1 2x + 5 (R+ is the positive reals.) Prove that f is one to one. I am having issues with how to use the fact that there are positive reals in the proof to show its 1-

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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Let's define the function f: R+R by f(x) =
4x - 1
2x + 5
.(R+ is the positive reals.) Prove that f is one to one.
I am having issues with how to use the fact that
there are positive reals in the proof to show its 1-
to-1?
Transcribed Image Text:Let's define the function f: R+R by f(x) = 4x - 1 2x + 5 .(R+ is the positive reals.) Prove that f is one to one. I am having issues with how to use the fact that there are positive reals in the proof to show its 1- to-1?
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