In a tournament, Snow beat Pheasants once, Skyscraper beat Tuna once, Snow beat Skyscraper twice, Pheasants beat Tuna once, and Pheasants beat Skyscraper once. In the following exercises, use a graph to model the tournament. The teams are the vertices. Describe the type of graph used (undirected, directed, simple) 1. There is an edge from team t; to team t; if t; beat t; at least once. 2. There is an edge from team t; to team t; for each victory of t; over tj.

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A: Given graph is

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A: Degree of a vertex:The degree of the vertex is the number of edges containing it.

Q: 10

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A: We will see the ans in next step

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Q: (c) The complement of the graph:

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A: Here we use the basic definition of simple graph

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