Recall 4 . Here's how it works. Example 1 . Example 2 . A quadratic function graphs into a parabola , a curve shape like the McDonald's arches.
Every quadratic function has a vertex and a vertical axis of symmetry .
This means it is the same graph on either side of a vertical line. The axis of symmetry goes through the vertex point. The vertex point is either the maximum or minimum point for the parabola. Sketch the graph of . 3 Sketch the graph of .