quadratic graphs

Free Mobile Software To Draw Quadratic, Algebraic & Trigonometry Graphs

I was searching for some convenient learning tools for plotting of graphs when I came across this mobile software for plotting of graphs.

In one of my post on Drawing of Quadratic Graphs, I introduced a very popular free software Graphmatica.

I have tested out this mobile software on my hp. It works!

It is good for sketching cubic, quadratic and trigo graphs. Very simple to use by inputting the coefficients of each terms.

How to download from computer to your handphone.

Download the required file from here ( I downloaded the TVH-72g Graphing Calculator JAR )
When the file is on your desktop, bluetooth it to your handphone
Go to your handphone Received Files, click on it and it is available for use immediately!

See below for the screenshots:

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This software is beneficial for knowing the general shape of the graphs.

For more information, click here

I would love to hear your experience in using this cool mobile software. Leave me your comments in the section below.

Quadratic Equation - Completing The Square Method

I have talked about the 3 main representations of a quadratic equation and each of its significance previously.

Today, I am using a real examination question to illustrate on The Completed Square Form and its significance.

Quadratic Equation And Discriminant

Click on picture for larger view

Siginifance of Discriminant $b^2-4ac$ : Type of Discriminant Determines The Types of Roots/Solutions ( No root, 1 real root or 2 real and distinct roots)

E-Maths Note: Quadratic Equations & Graphs Series Revisit

I have discussed about Quadratic Equations and Graphs previously in Features of Quadratic Equations and Graphs , Different representations of quadratic equations and their significance

This is really an important topic for students taking E-Math (elementary math) , more so for A-Math (additional math) as well.

Be sure that you know the basic of recognizing if a given equation is quadratic, how the quadratic equation looks like, the 5 main features of a quadratic graph, the different methods to solve a quadratic equation.

For students taking A-Math, you would definitely need to know more about the discriminant, sum or product of roots.

I would be elaborating more on methods to solve a quadratic equation and tips on discriminant so be sure you follow the blog by subscribing to the feed here.

E-Maths Note: Quadratic Equations & Graphs Series

For those in Sec 3s, you will be learning more about Quadratic Graphs. Not so much of the drawing like in Sec 2s, but more of indepth understanding.

A quadratic graph typically is either a smiley face :) or a sad face :( some prefer to call them U or n shape.

Q1: Do you know how to tell the "mood" of the quadratic graph given its equation? Be very speific to ensure crystal clear understanding.

Eg :) or :(

E-Maths Note: Quadratic Equations & Graphs

3 Different representations of a quadratic equation & its significance

: typical quadratic equation : Max/Min & instant answer to y-intercept
: Completed Squ form : Great for solving equation

: Instant answer to x-intercepts aka roots

Since we are on this topic of quadratic, one of the most important aspects is quadratic graphs.
There is a software which I use often for plotting of all sorts of graphs!
Yes, what you need to do is to "feed" the software with the equation of the graph that you intend to plot!

Get your free software for plotting by clicking here >>
Graphmatica Software

Now you know how your teachers plot their nice nice graphs :)