Khan Academy
Khan Academy: Even & Odd Functions: Equations
Given the formula of a polynomial function, determine whether that function is even, odd, or neither.
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...