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

Graphs of quadratic functions can be used to solve equations. Example. Draw the graph of \(y = 2x^{2} + 2x – 4\) for values of –3 to 2. Use the graph to solve the equation \ ...

Quadratic equations are basic to algebra and are the math behind parabolas, projectiles, satellite dishes and the golden ratio. ... As shown below, the graph of a quadratic equation is a parabola.

First, a quick review about quadratic equations and parabolas. ... “If you graph it, it’s much easier for the kids to understand what’s going on,” he said. How the new method works.