Quadratic Inequalities

A power learning aid combining Practice, Coaching Calculators and Guides to help students master the solving of quadratic inequalities by sketching associated graphs.

Coaching Calculators cover :

Solving quadratic inequalities

- by sketching associated graph

The Guide covers :

- Writing in general form
- Finding the graph shape
- Finding the x-intercept(s) if any
- Sketching the graph
- Finding the solution by inspection

Examples cover major types of quadratic inequalities and feature the finding of x-intercepts by factoring, completing the square and the quadratic formula.

The app also includes Guides and Coaching Calculators for finding the vertex of a quadratic graph :

- by completing the square