Question: Recall that Km,n denotes a complete bipartite graph on (m, n) vertices.
a. Draw K4,2
b. Draw K1,3
c. Draw K3,4
d. How many vertices of Km,n have degree m? degree n?
e. What is the total degree of Km,n?
f. Find a formula in terms of m and n for the number of edges of Km,n. Explain.