Rational Functions and Holes

Rational Functions and Holes
  • Currently 3.0/5 Stars.
6592 views, 2 ratings - 00:04:18
Part of video series Rational Functions
Taught by MrLovellFord
Given a rational function which has common factors in both the numerator and denominator, determine the locations in the graph of the simplified expression where holes would be located.
  • What are holes in the graphs of rational functions?
  • When is a rational function undefined?
  • Where is f(x) = (x^2 + x - 6)/(x - 2) undefined?
  • How can you identify holes in the graph of a function?
This lesson explains the concept of holes in graphs of rational functions where the function is undefined. The graph of this function appears to be a straight line except there is a hole in one spot on the graph.
  • Currently 4.0/5 Stars.
Reviewed by MathVids Staff on June 01, 2010.
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