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: (+ax2 types)
Part 2: (-ax2 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.