Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Quadratic Inequalities 螢幕截圖

iPad

iPhone

About 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