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# About: Quadratic Equations: Proficiency Exam

Module by: Wade Ellis, Denny Burzynski. E-mail the authors

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 Name: Quadratic Equations: Proficiency Exam ID: m21920 Language: English (en) Summary: This module is from Elementary Algebra by Denny Burzynski and Wade Ellis, Jr. Methods of solving quadratic equations as well as the logic underlying each method are discussed. Factoring, extraction of roots, completing the square, and the quadratic formula are carefully developed. The zero-factor property of real numbers is reintroduced. The chapter also includes graphs of quadratic equations based on the standard parabola, y = x^2, and applied problems from the areas of manufacturing, population, physics, geometry, mathematics (numbers and volumes), and astronomy, which are solved using the five-step method. This module contains the proficiency exam for the chapter "Quadratic Equations". Subject: Mathematics and Statistics Keywords: algebra, elementary, quadratics License: Creative Commons Attribution License CC-BY 3.0 Authors: Copyright Holders: Maintainers: Latest version: 1.4 (history) First publication date: Mar 19, 2009 1:51 am -0500 Last revision to module: Jun 1, 2009 11:17 am -0500

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## Version History

 Version: 1.4 Jun 1, 2009 11:17 am -0500 by Changes: `Removed link from summary.` Version: 1.3 May 27, 2009 4:42 am -0500 by Changes: `Final Publish.` Version: 1.2 Apr 28, 2009 3:47 am -0500 by Changes: `Dynamic Links added` Version: 1.1 Apr 16, 2009 6:56 am -0500 by Changes: `First Publish.`

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The following citation styles comply with the attribution requirements for the license (CC-BY 3.0) of this work:

### American Chemical Society (ACS) Style Guide:

Ellis, W.; Burzynski, D. Quadratic Equations: Proficiency Exam, Connexions Web site. http://cnx.org/content/m21920/1.4/, Jun 1, 2009.

### American Medical Assocation (AMA) Manual of Style:

Ellis W, Burzynski D. Quadratic Equations: Proficiency Exam [Connexions Web site]. June 1, 2009. Available at: http://cnx.org/content/m21920/1.4/.

### American Psychological Assocation (APA) Publication Manual:

Ellis, W., & Burzynski, D. (2009, June 1). Quadratic Equations: Proficiency Exam. Retrieved from the Connexions Web site: http://cnx.org/content/m21920/1.4/

### Chicago Manual of Style (Bibliography):

Ellis, Wade, and Denny Burzynski. "Quadratic Equations: Proficiency Exam." Connexions. June 1, 2009. http://cnx.org/content/m21920/1.4/.

### Chicago Manual of Style (Note):

Wade Ellis and Denny Burzynski, "Quadratic Equations: Proficiency Exam," Connexions, June 1, 2009, http://cnx.org/content/m21920/1.4/.

### Chicago Manual of Style (Reference, in Author-Date style):

Ellis, W., & Burzynski, D. 2009. Quadratic Equations: Proficiency Exam. Connexions, June 1, 2009. http://cnx.org/content/m21920/1.4/.

### Modern Languages Association (MLA) Style Manual:

Ellis, Wade, and Denny Burzynski. Quadratic Equations: Proficiency Exam. Connexions. 1 June 2009 <http://cnx.org/content/m21920/1.4/>.