Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Domain, Range, Vertical Line Test
A detailed tutorial on functions covering the following topics: finding the domain and range of a function, using the vertical line test, determining whether a function is even, odd, or neither, and applying the greatest integer function...
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Introduction to Functions
A good introductory tutorial on functions, through which you'll learn about relations, function, domain, and range by viewing several example questions and solutions, and by completing practice problems.