Let /: X →Y be a function, A, BC X and C, DCY. Show that: 1. f(AUB) = f(A) uf(B) 2. If AC B, then (A) ≤ f(B) 3. f-¹(CUD) = f¹(C)uf-¹ (D)

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 /: X →Y be a function, A, BC X and C, DCY.
Show that:
1. f(AUB) = f(A) uf(B)
2. If AC B, then (A) ≤ f(B)
3. f-¹(CUD) = f¹(C)uf-¹ (D)
Transcribed Image Text:Let /: X →Y be a function, A, BC X and C, DCY. Show that: 1. f(AUB) = f(A) uf(B) 2. If AC B, then (A) ≤ f(B) 3. f-¹(CUD) = f¹(C)uf-¹ (D)
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