A vertex (or node) of a graph is one of the objects that are connected together. The connections between the vertices are called edges or links. The order of a vertex is the number of edges connected to it. It is also called degree of a vertex. The degree of a graph is the largest vertex degree of that graph. Consider the below graph: The number of vertices in this graph is 4 . The order of vertex c is 3 .

An edge (or link) of a network (or graph) is one of the connections between the nodes (or vertices) of the network. Edges can be directed, meaning they point from one node to the next, as illustrated by the arrows in the figure below. In above directed network, there are 10 nodes (or vertices) and 13 edges (or links). Edges can also be undirected, in which case they are bidirectional, as illustrated by the lines in the figure, below. In above an undirected network, there are 10 nodes (or vertices) and 11 edges (or links).

A network is a set of objects (called nodes or vertices) that are connected together. The connections between the nodes are called edges or links. In mathematics, networks are often referred to as graphs. A vertex (or node) of a graph is one of the objects that are connected together. The connections between the vertices are called edges or links. A graph is said to be connected if every pair of vertices in the graph is connected. This means that there is a path between every pair of vertices.

E M B I B E

Extended MYP Mathematics A Concept based approach Years 4 & 5>Is Something Networking?>Chapter 18 - Graph Theory: Networks>What is a network?

Rose Harrison, Clara Huizink, Aidan Sproat Clements and, Marlene Torres Skoumal Solutions for Exercise 1: What is a network?

Author:Rose Harrison, Clara Huizink, Aidan Sproat Clements & Marlene Torres Skoumal

Rose Harrison Mathematics Solutions for Exercise - Rose Harrison, Clara Huizink, Aidan Sproat Clements and, Marlene Torres Skoumal Solutions for Exercise 1: What is a network?

Attempt the free practice questions from Exercise 1: What is a network? with hints and solutions to strengthen your understanding. Extended MYP Mathematics A Concept based approach Years 4 & 5 solutions are prepared by Experienced Embibe Experts.