Quadratic theory revisited I
Topic Revision
Roots of quadratic equations
Notes from Leckie & Leckie's Success Guide.
The discriminant
Notes from Leckie & Leckie's Success Guide.
Tangency
Notes from Leckie & Leckie's Success Guide.
Quadratic inequalities
Notes from Leckie & Leckie's Success Guide.
Past Paper Questions
Solve quadratic inequality in context (Q10 P2 2018)
Solve quadratic inequality in context (Q8b P2 2017)
Solve quadratic inequality in context (Q8 P1 2015)
Web Resources
Interactive Resources
Quadratic Interactive Demo (from geogebra.org)
Quadratic Equations (by Mike May)
Quadratic Inequalities (by Godfrey Almeida)
Online Quizzes
Solution of Quadratic Inequalities (by James P Robinson)
Quadratic Equations Quiz (from transum.org)
Discriminant to determine the No. of roots (from bbc.com)
Online Calculators
Quadratic Formula Calculator & Solver (from mathwarehouse.com)