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.

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

Revise how to recognise and determine the equation of a quadratic function from its graph. BBC Bitesize Scotland revision for SQA National 5 Maths.

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

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

Quadratic equations are basic to algebra and are the math behind parabolas, projectiles, satellite dishes and the golden ratio.

"You don't necessarily have to understand the words we're saying to see [the graph.] You don't have to know how to solve a quadratic formula to do this activity." ...

The quadratic formula learned by generations of math students is difficult to remember, but it can be used to solve quadratic equations where y = 0.