Try It Now

Work these exercises to see how well you understand this material.

Solutions

  1. Answer: It might not be most economical with respect to Objective 1. You should be able to find an example to illustrate this claim. The new system can always be made most economical with respect to Objective 2 if the old system were designed with that objective in mind.

  2. Answer: In the figure below, {1, 2} is not a minimal bridge between L = {1, 4} and R = {2, 3}, but it is part of the minimal spanning tree for this graph.