a. The function f : Z → Z, f(x) = 2x is onto. (A) True (В) False b. The function f : Z → Z, f(x) = 2x is one-to-one. (A) True (В) False c. The function f: R → R, f(x) = 2x is onto. (A) True

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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*All 3 are true or false

a. The function
f : Z → Z, f(x) = 2x
is onto.
(A) True
(В) False
b. The function
f : Z → Z, f(x) = 2x
is one-to-one.
(A) True
(В) False
c. The function
f: R → R, f(x) = 2x
is onto.
(A) True.
Transcribed Image Text:a. The function f : Z → Z, f(x) = 2x is onto. (A) True (В) False b. The function f : Z → Z, f(x) = 2x is one-to-one. (A) True (В) False c. The function f: R → R, f(x) = 2x is onto. (A) True.
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