SACE Stage 2 General Mathematics Practice Questions - SACE Stage 2 General Mathematics External Assessment Exam

In a directed network represented by an adjacency matrix A, what does an entry of a_ij = 2 signify?

Vertex i and vertex j both have a vertex degree of 2 in the graph. There are 2 indirect paths of length 2 connecting vertex i and vertex j. There are 2 direct one-step directed edges pointing from vertex i to vertex j. The shortest distance between vertex i and vertex j is equal to 2 units.

Correct Answer:

There are 2 direct one-step directed edges pointing from vertex i to vertex j.

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