Define a relation on R^2 by (x1, y1) ~ (x2, y2) if y1 = y2. This is an equivalence relation. (You do not need to prove this claim.) a. Explain why all points on the x-axis belong to the same equivalence class. b. Prove that if p1, p2 are two distinct points on the line y = 2x + 5, then [p1] ≠ [p2]. c. Define a function f : R -> R^2 /~ such that f is a bijection. (You don’t have to prove your function is a bijection
Define a relation on R^2 by (x1, y1) ~ (x2, y2) if y1 = y2. This is an equivalence relation. (You do not need to prove this claim.) a. Explain why all points on the x-axis belong to the same equivalence class. b. Prove that if p1, p2 are two distinct points on the line y = 2x + 5, then [p1] ≠ [p2]. c. Define a function f : R -> R^2 /~ such that f is a bijection. (You don’t have to prove your function is a bijection
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.7: Relations
Problem 11E: Let be a relation defined on the set of all integers by if and only if sum of and is odd. Decide...
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Define a relation on R^2 by (x1, y1) ~ (x2, y2) if y1 = y2. This is an equivalence relation. (You do not need to prove this claim.)
a. Explain why all points on the x-axis belong to the same equivalence class.
b. Prove that if p1, p2 are two distinct points on the line y = 2x + 5, then [p1] ≠ [p2].
c. Define a function f : R -> R^2 /~ such that f is a bijection. (You don’t have to prove your function is a bijection.)
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