Web Links

**Chapter 1: Functions and Limits**Visual Calculus / Pre-CalculusAn excellent site that has tutorials covering virtually everything about functions. It also has interactive online applets, practice problems with solutions, examples, quizzes, and tutorials on using graphing calculators.

**Section 1.1: **Functions and Their Representations

Four ways to represent a functionThis site contains flash animated discussions of the meaning of the word function under the four standard representations.

**Section 1.2:** A Catalog of Essential Functions

Composite FunctionsThis is a thorough explanation of the concept of composite functions and their domains, along with a couple of worked out examples.

**Section 1.5:** Continuity

Continuity and DiscontinuityDefinitions and examples of continuity and discontinuity both at single points and on intervals.

**Section 1.6:** Limits Involving Infinity

Limits of Functions as x Approaches InfinityPractice questions provided by UC Davis, with solutions.