2.4 Quadratic Functions

We introduce the idea of standard form of a quadratic, (this is also known as vertex form)

To get a quadratic from general form into vertex form you can complete the square.

We could also find the vertex from the general form of a quadratic by using the fact that the x-value of the vertex (h, k) can be found by


Here is a worksheet to practice vertex form of a parabola.