ECSENOMICS Least-Cost Input Combination Comes at C 1-59 Figure 7A-3 Substituting Inputs to Min im ize Cost of Production A B q=346 25s L 56789 L aboI McGraw-Hilllrwin CopyrightC 2001 The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill/Irwin Copyright © 2001 The McGraw-Hill Companies, Inc. All rights reserved. Least-Cost Input Combination Comes at C T-59 Figure 7A-3