Construct and analyse relation matrices
A network for towns joined by direct roads is shown. Each line shows a road that can be used in both directions
All entries and route counts are exact whole numbers; no rounding is used
Use the vertex order Ararat, Colac, Echuca, Bendigo for the rows and columns of \(C\). Rows name the source vertex and columns name the target vertex
Complete the marked entries
Rows, in order: Ararat, Colac, Echuca, Bendigo
Columns, in order: Ararat, Colac, Echuca, Bendigo
\[C = \begin{bmatrix} \square & 1 & \square & \square \\ 1 & \square & 1 & \square \\ 1 & \square & 0 & 1 \\ \square & 1 & 1 & \square \end{bmatrix}\]