Identify the x intercepts as well as vertex for a quadratic in standard form, y=x^2 -15

The video tutorial explains how to identify the vertex of a graph using vertex form, focusing on the H and K values. It covers graph transformations, detailing how H and K affect graph shifts. The tutorial also demonstrates finding solutions using an old equation method and solving for X using inverse operations and the square root method.

What is the significance of the square root method in solving for X?

What are the final X values obtained from the equation discussed?