How to determine the VA of a function

The video tutorial explains vertical asymptotes as points where a function becomes undefined, typically in rational functions. It describes how to find vertical asymptotes by setting the denominator equal to zero. An example is provided to illustrate the process, showing that the vertical asymptote occurs at a value where the function is undefined. The tutorial concludes with a reminder of the importance of identifying vertical asymptotes in mathematical analysis.

Describe the process of setting the denominator equal to zero to find vertical asymptotes.

What does it mean for a function to be undefined at a certain value?