Edexcel D1 2019 January — Question 2

Exam BoardEdexcel
ModuleD1 (Decision Mathematics 1)
Year2019
SessionJanuary
TopicShortest Path

2. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{e7f89fa1-0afa-4aec-a430-14ec98f487c8-03_848_1435_244_315} \captionsetup{labelformat=empty} \caption{Figure 1}
\end{figure} Figure 1 represents a network of roads. The number on each arc is the length, in km , of the corresponding road.
  1. Use Dijkstra's algorithm to find the shortest route from A to L. State the shortest route and its length.
  2. Explain how you determined the shortest route from your labelled diagram.
  3. Find the length of the shortest route from J to F via A , and state your route.