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# Solutions Using the Discriminant

## Identify and use 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.
• Read

## Solutions Using the Discriminant

by CK-12 //at grade

Given a quadratic equation, find its discriminant and use the result to determine the nature of the solutions.

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• Video

## The Discriminant: A Sample Application

by CK-12 //at grade

This video demonstrates a sample use of the discriminant.

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• Video

## The Discriminant: An Explanation of the Concept

by CK-12 //at grade

This video provides an explanation of the concept of the discriminant.

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• 0
• Critical Thinking

## Solutions Using the Discriminant Discussion Questions

by CK-12 //at grade

A list of student-submitted discussion questions for Solutions Using the Discriminant.

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• Real World Application

## Telescope

by CK-12 //at grade

Students will apply their understanding of polynomials and quadratics to better understand the making of a mirror for an astronomer's telescope.

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• Study Guide

## Solving Quadratic Equations Study Guide

by CK-12 //at grade

This study guide gives an overview of methods to solve quadratic functions: solving by square roots (special case), completing the square, using the quadratic formula. It also looks at using the discriminant to determine the number of solutions.

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