4. Let R be a relation on the set {1,2, 3, 4} such that R = {(1, 1), (1, 3), (2, 2), (2, 3), (3,2), (3, 4)}. Represent R using a matrix and a directed graph.

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter1: Line And Angle Relationships
Section1.4: Relationships: Perpendicular Lines
Problem 17E: Does the relation is a brother of have a reflexive property consider one male? A symmetric property...
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4.
Let R be a relation on the set {1, 2,3, 4} such that R = {(1, 1), (1, 3), (2, 2), (2,3), (3,2), (3, 4)}.
Represent R using a matrix and a directed graph.
5.
For each of the following relations, indicate whether the relation is reflexive,
anti-reflexive, symmetric, anti-symmetric and transitive. Justify your answers.
а.
R is a relation on Z such that (x, y) ER if and only if x + y = 0.
b. R is a relation on the set of all people such that (a, b) e R if and only if a was born on the
same day as b.
Transcribed Image Text:4. Let R be a relation on the set {1, 2,3, 4} such that R = {(1, 1), (1, 3), (2, 2), (2,3), (3,2), (3, 4)}. Represent R using a matrix and a directed graph. 5. For each of the following relations, indicate whether the relation is reflexive, anti-reflexive, symmetric, anti-symmetric and transitive. Justify your answers. а. R is a relation on Z such that (x, y) ER if and only if x + y = 0. b. R is a relation on the set of all people such that (a, b) e R if and only if a was born on the same day as b.
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