The vertex form of a quadratic equation is significant because it emphasizes the location of the vertex of the parabola and facilitates solving for the zeros of the quadratic equation. You rewrite a given quadratic equation into vertex form without having to graph the equation by completing the square.
The following interactive will review the steps for completing the square.
This website is a production of Maryland Public Television/Thinkport in collaboration with the Maryland State Department of Education. The contents of this website were developed under a grant from the U.S. Department of Education. However, those contents do not necessarily represent the policy of the U.S. Department of Education, and you should not assume endorsement by the Federal Government.
Opens a new window 
Opens a new window
2015 Copyright Maryland State Department of Education
Opens a new window
Contact the MSDE Office of Instructional Technology for copyright questions.