Edexcel D1 2013 June — Question 1

Exam BoardEdexcel
ModuleD1 (Decision Mathematics 1)
Year2013
SessionJune
TopicCombinations & Selection

1. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{5b32eb57-c9cd-46ec-a328-12050148bdf7-2_766_570_324_342} \captionsetup{labelformat=empty} \caption{Figure 1}
\end{figure} \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{5b32eb57-c9cd-46ec-a328-12050148bdf7-2_755_570_331_1146} \captionsetup{labelformat=empty} \caption{Figure 2}
\end{figure} Figure 1 shows the possible allocations of six people, Alex (A), Ben (B), Harriet (H), Izzy (I), Leo (L) and Rowan (R), to six tasks, \(1,2,3,4,5\) and 6.
  1. Write down the technical name given to the type of diagram shown in Figure 1. Figure 2 shows an initial matching.
  2. Starting from the given initial matching, use the maximum matching algorithm to find a complete matching. You should list the alternating paths you use, and state your improved matching after each iteration.
    (6)