Also here's a handout that Marty Weissman used in his Math X section on dealing with critical points for functions:
Marty's 11-28 Handout

From Dale Winter's section:

In Class Exercise 9-25
In Class Exercise 9-27
In Class Exercise 10-2
In Class Exercise 10-4
In Class Exercise 10-6
In Class Exercise 10-11
In Class Exercise 10-13
In Class Exercise 10-16
In Class Exercise 1 10-18
In Class Exercise 2 10-18
In Class Exercise 1 10-20
In Class Exercise 2 10-20
In Class Exercise 1 10-27
In Class Exercise 2 10-27
In Class Exercise 3 10-27
In Class Exercise 1 11-1
In Class Exercise 1 11-3
In Class Exercise 2 11-3
In Class Exercise 1 11-6
In Class Exercise 2 11-6
In Class Exercise 1 11-8
In Class Exercise 2 11-8
In Class Exercise 1 11-15
In Class Exercise 2 11-15
In Class Exercise 3 11-15
In Class Exercise 4 11-15
In Class Exercise 1 11-17
In Class Exercise 2 11-17
In Class Exercise 3 11-17
In Class Exercise 4 11-17
In Class Exercise 5 11-17
In Class Exercise 6 11-17
In Class Exercise 1 11-27
In Class Exercise 2 11-27
In Class Exercise 3 11-27
In Class Exercise 1 12-06
In Class Exercise 2 12-06
In Class Exercise 1 12-08
In Class Exercise 2 12-08
In Class Exercise 1 12-11
In Class Exercise 2 12-11
In Class Exercise 1 12-13
In Class Exercise 2 12-13