Learning objectives

• Explore the chain rule for compositions of functions with various numbers of variables
• Treat the chain rule as substitution into differentials

Before class

• Read Hughes-Hallett sections 14.6.
• Ponder Hughes-Hallett problems: 14.6: 3, 9, 15, 17.
• Complete HW4 on WeBWork
• Post to Piazza
• Write solutions to problems 14.1: 26-28; 14.2: 42; 14.3: 26; 14.4: 68; 14.5: 44, to turn in at the beginning of class.

In class

• Work problems
• Using differentials to linearize equations