Use the formula to find the vertex

The video tutorial explains how to find the vertex of a quadratic function without completing the square. It introduces the vertex formula, which involves using the coefficients of the quadratic equation. The tutorial provides a step-by-step example of calculating the vertex using the formula, demonstrating the process with a specific quadratic equation. The video concludes with a summary of the method as a quick and easy way to find the vertex.

What is the significance of the vertex in a quadratic function?

Calculate the vertex for the quadratic function given in the text.