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

Show answer Solving equations with quadratic graphs Graphs of quadratic functions can be used to solve equations. Example Draw the graph of y = 2 x 2 + 2 x 4 for values of –3 to 2.

A new algebra course guide has been released, featuring dynamic geometry software that transforms complex equations into interactive visual models.

A good description of Least Squares Fit to Quadratic Data Part of a least squares fit involves solving three equations with three unknowns. Here is a description of using Excel's Solver to do this ...

Graph of a quadratic equation and its roots via the quadratic formula. Jacob Rus, CC BY-SA Equations and plots like these are part of algebra, but they’re not the whole story.