In these tutorials I show you how we can use completing the square to sketch a quadratic graph, locate the maximum or minimum points and the equation of the line of symmetry.

## Part 1: (+ax^{2} types)

## Part 2: (-ax^{2} types)

## Experiment with the Graph

Move the sliders in the graph below

- See how p stretches the graph. See what happens for positive and negative values.
- See how q translates the graph parallel to the x-axis.
- See how r translates the graph parallel to the y-axis.