Math Problem Statement

Is there a graph on 6 vertices with degrees 2, 3, 4, 5, 6, 7?

Question 1Select one:

False

True

Solution

The statement is False.

Here’s why: In any graph, the degree of a vertex cannot exceed the number of vertices minus 1, because a vertex can only connect to at most n1n - 1 other vertices in a graph with nn vertices.

In this case, you have 6 vertices. The highest possible degree for any vertex in a graph with 6 vertices is 5 (since it can be connected to the other 5 vertices). However, one of the specified degrees is 7, which is not possible because there aren’t enough vertices for a vertex to have 7 connections in a 6-vertex graph.

Would you like more details or have any questions? Here are some related questions:

  1. What is the degree sequence in graph theory?
  2. Can there be a graph where all vertices have the same degree?
  3. What is the sum of degrees of all vertices in a graph with 6 vertices?
  4. What is the maximum degree in a complete graph with nn vertices?
  5. How do we check if a given degree sequence is graphical?

Tip: In any graph with nn vertices, the sum of all degrees is always even due to the handshaking lemma.

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Math Problem Analysis

Mathematical Concepts

Graph Theory
Vertex Degree
Handshaking Lemma

Formulas

The maximum degree of a vertex in a graph is n - 1, where n is the number of vertices

Theorems

Handshaking Lemma
Graph Degree Sequence

Suitable Grade Level

Grades 9-12