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CK-12 Foundation
Ck 12: Factor Quadratics: 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.
BBC
Bbc: Higher Bitesize Maths: Quadratic Theory
A tutorial on quadratics presents topics including: factoring and solving quadratics, graphing quadratic functions, using completing the square and the quadratic formula to solve functions, the discriminant and conjugates. Plenty of...
Mangahigh
Mangahigh: Algebra: Recognize the Equations of Common Curves
Students recognize and know the sketches of quadratics, cubics and recipricols including the shape of positive and negative functions and the interpretation of their y-intercepts.
Khan Academy
Khan Academy: Lsn 13: Systems of Equations, Algebraic and Graphical Representations
Lesson 3 of 4 for Passport to Advanced Math. Learners will solve systems of equations in two variables in which one equation is linear and the other equation is quadratic or another nonlinear equation; relate properties of the function f...
Illustrative Mathematics
Illustrative Mathematics: F if Throwing Baseballs
In this task about the height of baseballs thrown into the air, students are asked to compare characteristics of two quadratic functions that are each represented differently, one as the graph of a quadratic function and one written out...
Math Planet
Math Planet: Algebra 2: Standard Deviation and Normal Distribution
Gain an understanding of standard deviation and normal distribution by viewing an example and a video lesson.