Question: a. Let V = {x, y, 2, u, v}. How many distinct graphs are there on the vertex set V with exactly 7 edges? (Note

a. Let V = {x, y, 2, u, v}. How many distinct graphs are there on the vertex set V with exactly 7 edges? (Note that for graphs G1 = (V, E1 ) and G2 = (V, E2) to be distinct, they need only have E1 / E2, but they may be isomorphic.) b. In the graph below, give an example of a trail that is not a path. T. Z

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