TeachMe Quadratics в Android Market

TeachMe Quadratics (v. 1.0) Разработано PointKinetic

Have you ever wondered what Quadratics are all about?

This app enables you to visualise graphically what happens when you change the values of a, b and c in the quadratic equation y = ax² + bx + c. Generally the shape of the graph is a parabola. But is it always parabolic? Where does it cross the x and y axes – if at all? Where is the vertex – if there is one? This and other questions can be answered using this app.
The main features of the app are:
* An interactive approach to help deepen understanding of Quadratic Equations
* Visualising the quadratic equation and its x/y intercepts and vertex graphically
* Zoom in/out graphically
* On-screen take-by-the-hand walkthrough to help highlight interesting mathematical features
* A Quadratic Calculator to calculate the x/y intercepts, vertex, factored and vertex forms of the quadratic from chosen values for a, b and c (for real values).

Keywords: quadratics, trinomial factoring, graph visualisation, parabola, algebra, GCSE, college, math, mathematics, GRE, SAT, ACT