How to evaluate a rational function given three different input values

The video tutorial explains how to evaluate a function F(x) = 5 / (1 - x) for different values of x. It provides examples for x = -2, x = 0, and x = 1, demonstrating the calculation process and highlighting the concept of undefined results when dividing by zero. The tutorial emphasizes the importance of understanding these concepts in function evaluation.

What new insight or understanding did you gain from this video?