Question: Consider the lexicographically ordered adjacency matrix 0 1 1 1 0 0 1 0 1 0 0 0 1 1 0 1 1 1 A
Consider the lexicographically ordered adjacency matrix
0 1 1 1 0 0
1 0 1 0 0 0
1 1 0 1 1 1
A = 1 0 1 0 0 0
0 0 1 0 0 1
0 0 1 0 1 0
for a graph G with vertex set { a,b,c,d,e, f } .
a) Sketch this graph and state the degrees of each of the nodes.
b) State, with justification, whether this is a simple graph, or not.
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