Graphing a quadratic function in vertex form with reflection

The video tutorial explains how a quadratic function with a negative sign inside the function reflects over the Y axis. It starts by setting up the problem and creating a table of values, showing that squaring any number results in positive values. The tutorial then discusses how multiplying by a negative number inside the function reflects the graph over the Y axis, resulting in the same graph as the original parabola. The video concludes by summarizing the transformation process and its effects on the graph.

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