Lesson: Domain of Rational Functions Mathematics

In this lesson, we will learn how to identify the domain of a rational function and the common domain of two or more rational functions.

Lesson Plan

Students will be able to

identify the domain of a rational function in which the denominator is a linear, a quadratic, a cubic, or a higher-degree polynomial,
find the common domain of two or more rational functions,
find unknowns in a function given the domain.

Q1:

For what value of does not exist?

Q2:

Identify the domain of .

Q3:

For which values of is the function not defined?