Limits of Algebraic Functions
Calculus
How to find the limits of algebraic functions by direct substitution is explained in this video.
Math Video Central
This website provides tutorial videos on Algebra, Geometry, Trigonometry, Pre-Calculus, Basic Calculus, and Statistics and Probability. The videos are for junior and senior high school students as well as for parents who would like to guide their kids in understanding their lessons in math.