Please type your asnwer for a better rating! 4. Explain for the 2-good case how "duality" can be using to relate the consumer's utility maximiz ation problem and the consumer's expenditure minimization problem. Use pictures to exactly identify the duality relationship between utility maximization and expenditure minimization. For this problem, assume preferences are strictly convex (and have a utility representation by a utility function that is strictly concave)..