A quadratic function can be drawn as a parabola on a graph. Find out how to plot the graph in this Bitesize KS3 maths video.

Annie Qu, Bruce G. Lindsay, Bing Li, Improving Generalised Estimating Equations Using Quadratic Inference Functions, Biometrika, Vol. 87, No. 4 (Dec., 2000), pp. 823-836 ...

His secret is in generalizing two roots together instead of keeping them as separate values. Quadratic equations are polynomials that include an x², and teachers use them to teach students to find two ...

A mathematician at Carnegie Mellon University has developed an easier way to solve quadratic equations. Here's the secret.