Learning objectives

• Describe the difference between a constrained and an unconstrained optimization problem
• Give a graphical explanation of the method of Lagrange multipliers
• Give the practical meaning of a Lagrange multiplier

Before class

• Read Hughes-Hallett 9.6.
• Ponder problems 9.6. 11-13, 18-21.
• Consult the main points of the lesson

In class

• Constraints activity
• Problems 
• Work with Lagrange multipliers