If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

To log in and use all the features of Khan Academy, please enable JavaScript in your browser.

Main content

Unit: Quadratic functions and equations

0

Possible mastery points

Solving quadratics by taking the square root

Learn

Practice

Quadratics by taking square rootsGet 3 of 4 questions to level up!

Vertex form

Learn

Practice

Graph quadratics in vertex formGet 3 of 4 questions to level up!

Solving quadratics by factoring

Learn

Practice

Quadratics by factoringGet 3 of 4 questions to level up!
Solve equations using structureGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 320 Mastery points

The quadratic formula

Learn

Practice

Quadratic formulaGet 3 of 4 questions to level up!

Completing the square

Learn

Practice

Completing the square (intro)Get 3 of 4 questions to level up!
Solve equations by completing the squareGet 3 of 4 questions to level up!
Completing the squareGet 3 of 4 questions to level up!

Forms and features of quadratic functions

Learn

Practice

Features of quadratic functionsGet 3 of 4 questions to level up!
Graph parabolas in all formsGet 3 of 4 questions to level up!
Interpret quadratic modelsGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 560 Mastery points

Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1100 Mastery points!