Math Medics
S.o.s. Math: Sign of a Quadratic Function and Inequalities
This lesson discusses the sign of a quadratic function as it applies to inequalities.
CK-12 Foundation
Ck 12: Algebra: Quadratic Functions and Equations
[Free Registration/Login may be required to access all resource tools.] This lesson covers vertex, intercept, and standard forms.
CK-12 Foundation
Ck 12: Algebra: Quadratic Functions and Their Graphs
[Free Registration/Login may be required to access all resource tools.] This lesson covers how to find the x-intercepts, vertex, axis of symmetry, and y-intercept of a parabola.
Texas Instruments
Texas Instruments: Glencoe Algebra: Graphing Quadratic Functions in Vertex Form
Students will explore quadratic functions in vertex form.
Math Planet
Math Planet: Algebra 2: How to Graph Quadratic Functions
Gain an understanding of how to graph quadratic equations by viewing an example and a video lesson.
CK-12 Foundation
Ck 12: Analysis: Graphs of Quadratic Functions
[Free Registration/Login may be required to access all resource tools.] Students review of quadratic function graphing methods. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
CK-12 Foundation
Ck 12: Algebra: Graphing Calculator to Graph Quadratic Functions
[Free Registration/Login may be required to access all resource tools.] This lesson covers how to use a graphing calculator to graph quadratic equations. Students examine guided notes, review guided practice, and attempt practice problems.
Purple Math
Purplemath: Graphing Quadratic Functions: Introduction
The most basic quadratic is y = x2. The general technique for graphing quadratics is the same as for graphing linear equations. The quadratics graph as curvy lines (called "parabolas"), rather than the straight lines generated by linear...
Math Medics
S.o.s. Math: Quadratic Equations
Defines root of a quadratic equation. Portrays graphically what quadratic roots look like. Tutorial includes two basic examples where roots are discovered, and links to pertinent topics elsewhere on the site and a math forum organized by...
Department of Defense
Do Dea: Algebra 1: Semester Ii: Quadratics and Radicals
A learning module through which students learn about quadrics and radicals including quadratic functions, solving quadratic equations, radicals, operations on radicals, and radical equations.
CK-12 Foundation
Ck 12: Analysis: Methods for Solving Quadratic Functions
[Free Registration/Login may be required to access all resource tools.] A review of the three major methods of solving quadratic functions for ''X'' intercepts.
Richland Community College
Richland Community College: Algebra Lecture Notes
This site from Richland Community College provides lecture notes to a class on Algebra. It covers a wide array of topics including functions, quadratic equations, inequalities, and much more.
CK-12 Foundation
Ck 12: Algebra: Graphs of Quadratic Functions in Intercept Form
[Free Registration/Login may be required to access all resource tools.] Understanding the graphs of a parabola given equations. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
University of St. Andrews (UK)
University of St. Andrews: Quadratic, Cubic and Quartic Equations
This site gives a history of quadratic functions.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Quadratic Equations
Here is a site that clearly and thoroughly explains the quadratic equations, including how to solve them by factoring, completing the square, and using the quadratic formula. There are example problems solved, problems for the student to...
Khan Academy
Khan Academy: Graph Quadratics in Factored Form
Graph quadratic functions that are given in factored form. For example, graph y=(x-4)(x+2). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Math Medics
S.o.s. Math: Algebra
This lesson provides basic instruction on the major concepts in algebra. Content includes a focus on fractions, units of conversion, complex numbers, quadratic equations, factorization and roots of polynomials, solving equations, systems...
CK-12 Foundation
Ck 12: Identifying Function Models: Linear, Exponential, and Quadratic Models
[Free Registration/Login may be required to access all resource tools.] Learn how to distinguish between linear, exponential, and quadratic models.
CK-12 Foundation
Ck 12: Interactive Algebra 2
This Algebra 2 course has interactivity included in every lesson. Lessons include questions with immediate feedback to help you learn along the way, videos, lots of interactives (PLIX and Sims), and Adaptive Practice questions help you...
Cuemath
Cuemath: Range in Algebra
Explore the world of range in Algebra in this mini-lesson. Provides a definition and examples that help with understanding how to find the range of a function and domain. Includes solved examples and interactive questions with answers.
CK-12 Foundation
Ck 12: Algebra: Vertex Form of a Quadratic Equation
[Free Registration/Login may be required to access all resource tools.] Write quadratic functions in vertex form and find their vertex and intercepts.
Annenberg Foundation
Annenberg Learner: Insights Into Algebra 1. Workshop 4
Determine the height of a bouncing ball by creating a quadratic function for each.
CK-12 Foundation
Ck 12: Algebra: Graphing Quadratic Equations Study Guide
This comprehensive study guide highlights the main terms and formulas needed to review graphing quadratic equations. Examples are included.
CK-12 Foundation
Ck 12: Analysis: Methods for Solving Quadratic Functions
[Free Registration/Login may be required to access all resource tools.] This lesson applies factoring a quadratic equation to other types of polynomials that are in "quadratic form."