Master How to determine the domain of a rational function

The video tutorial explains how to determine the domain of rational functions. It begins with an introduction to the concept of domain, using basic examples like y = X^2 and y = sqrt(X) to illustrate the idea. The tutorial emphasizes the importance of identifying values not included in the domain, such as negative values for square roots and zero in denominators. It provides detailed examples of rational functions, demonstrating how to find the domain by setting the denominator equal to zero and using set notation to express the domain.

What is the significance of setting the denominator equal to zero when finding the domain?

Explain the importance of identifying values that are not part of the domain.

How can you express the domain of a function using set notation?

What is the domain of the function H(X) = (X - 2) / (X^2 - 8X + 7)?