A tropical fish hobbist had six different types of fish: Alphas, Betas, Certas, Deltas, Epsalas, and Fetas, which shall henceforth be designated by A, B, C, D, E, and F, respectively. Because of predator-prey relatinships, water conditions, and size, some fish can be kept in the same tank. The following table shows which fish cannot be together:
Type | A | B | C | D | E | F |
Cannot be with | B, C | A ,C, E | A, B, D, E | C, F | B, C, F | D, E |
We will use a graph to help us answer this question. Below you will see an uncolored graph that describes this situation. Can you figure out what each vertex represents? each edge?