TeachMe Quadratics|教育線上App不用買

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

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免費玩TeachMe Quadratics App

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