# Graphing Rational Functions with Holes

Videos, worksheets, solutions, and activities to help PreCalculus students learn about graphing rational functions with holes.

### Graphing Rational Functions with Holes

Rational functions have points where they are undefined, which introduces us to graphing holes in the function.
Graphing holes involves being able to find these points. A rational function is a quotient of two functions, and if
the denominator of this quotient has zeros, the rational function is undefined at that point. Graphing holes means
showing what input values makes this denominator function zero.

How to graph a rational function when there is a common factor in the numerator and denominator.

#### Graphing a Rational Function with a Hole

#### Holes in Rational Equations

#### Coordinates of a Hole of a Rational Function

This video shows how to find the coordinates of a hole in the graph of a rational function.