What is the Discriminant?

b^2-4ac

The value of the discriminant will determine the type of roots of a Quadratic Graph.

It can also be used to determine the range or value of the unknown in a quadratic graph.

The video below shows how to use the discriminant to find the range of values of an unknown in a quadratic function.

PS : – You can get  complete worksheet and Video Lessons to learn Form 4 Chapter 3 Quadratic Functions here.

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