The basic parabola

The graph of the quadratic function \(y=x^2\) is called a parabola. The basic shape can be seen by plotting a few points with \(x=-3\), \(-2\), \(-1\), 0, 1, 2 and 3.

y = x squared, parabola, local minimum at origin.
Detailed description of diagram

We will refer to the above graph as the basic parabola. As we will see, all parabolas can be obtained from this one by translations, rotations, reflections and stretching.

The basic parabola has the following properties:

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