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.
By netsrot
Hi,
I'm Ai Ling. I enjoy coaching students who have challenges with
understanding and scoring in 'O' Level A-Maths and E-Maths. 
Hi, please send me the notes for 1-4 maths
Thnaks
Hema
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