Which of the following degree sequences are possible for a simple graph? A. (9,7,7,7,7,6,5,4,4) B. (6,5,5,5,5,5,4,4,4,3) C. (4,3,3,2,2,2,1) D. (7,7,6,6,6,5,5,4)

4. Here is the graph of two sequences. Sequence A is labeled as triangles and Sequence B is lableed as circles. Complete the table for both sequences. 20 19 18 Term # Sequence A Sequence B 1/2 12 16 15 -1 14 13 12 11 10 3. 6 4 4. B 3 6. term number a. For Sequence A, describe a way to produce a new term from the previous term. b. For Sequence B, describe a way to produce a new term from the previous term. c. Which of these is a geometric sequence? Explain how you know. value of term

For each degree sequence below, decide whether it could be the degree se-quence of: a tree, complete graph, a graph other than a tree or complete graph, or not a graph at all. Justify your answers(a) (4, 4, 4, 4, 4)(b) (8, 6, 4, 2, 2, 2)(c) (3, 3, 1, 1, 1, 1)(d) (5, 4, 3, 2, 1, 1, 1)

1. Find the degree sequence of the cycle graph C6. degree sequence = 2. Find the degree sequence of the wheel graph with 9 spokes. degree sequence = 3. Find the degree sequence of the complete graph K7. degree sequence = 4. Find the degree sequence of the complete bipartite graph K2,4. degree sequence =