Quadratic equations are polynomials, meaning strings of math terms. An expression like “x + 4” is a polynomial. They can have ...

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

Practice how to recognise and determine the equation of a quadratic function from its graph ahead of your National 5 Maths exam with this interactive maths quiz.

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

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.

Many former algebra students have painful memories of struggling to memorize the quadratic formula. A new way to derive it, overlooked for 4,000 years, is so simple it eliminates the need.

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 ...