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# Discriminant

## Determine the number of real roots using the discriminant

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Using the Discriminant

This lesson uses the discriminant to determine how many real solutions a quadratic equation has.

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## Discriminant

Discriminant Interactive

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• Video

## Discriminant for Types of Solutions for a Quadratic

Uses the discriminant to determine how many real solution are possible for a quadratic equation.

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• Real World Application