How to do a vertical stretch

The video tutorial explains how to apply a vertical stretch to a mathematical equation. It begins with setting up the problem and introduces the formula Y = a * F(X). The instructor then demonstrates how to apply a vertical stretch by a factor of 3, showing the step-by-step process of multiplying the equation by the factor. The tutorial concludes with the final equation after the transformation.

Describe the process of transforming the equation as outlined in the text.

What is the final equation derived from the transformation process described?