CK-12 Foundation
Ck 12: Analysis: Methods for Solving Quadratic Functions
A review of the three major methods of solving quadratic functions for X intercepts.
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.
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...
CK-12 Foundation
Ck 12: Algebra: Linear, Exponential, and Quadratic Models
[Free Registration/Login may be required to access all resource tools.] Given a table of values, determine the type of function being modeled.
CK-12 Foundation
Ck 12: Algebra Ii: 1.7 the Fundamental Theorem of Algebra for Quadratics
This section will primarily explore how the Fundamental Theorem of Algebra applies to Quadratic Functions.
Thinkport Education
Thinkport: Algebra Ii: Regression
Build on your understanding of modeling with linear, quadratic and exponential functions to begin to include other function families.
Paul Dawkins
Paul's Online Notes: Algebra: Parabolas
Detailed math tutorial features notes and examples that investigate the process for graphing parabolas.
Khan Academy
Khan Academy: Number of Solutions of Quadratic Equations
Analyze quadratic equations in order to determine how many different real number solutions they have. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Algebra Ii: 1.14 Polynomial Models
Learning to express real-life situations as mathematical functions (models) allows seemingly complex ideas and actions to be broken down into smaller, simpler parts and analyzed. In this section are three types of of those models:...