Question: Let n 24 and let Rn be a graph with vertex set {x1,...,xn) U (y) and the following edges: {x1, x2), (x2, x3},..., (xn-1,

Let n 24 and let Rn be a graph with vertex set

Let n 24 and let Rn be a graph with vertex set {x1,...,xn) U (y) and the following edges: {x1, x2), (x2, x3},..., (xn-1, xn), (xn, x1), and . . {xi, y} for every 1 sisn. a) Draw the graph R6. b) How many edges are in Rn? c) How many paths of length 2 does Rn have? d) How many subgraphs of Rn (where n 4) are isomorphic to K-4 (i.e. K4 with an edge removed)?

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