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.

Some common examples of the quadratic function Notice that the graph of the quadratic function is a parabola. This means it is a curve with a single bump. The graph is symmetric about a line called ...

Get an overview of a student investigation, solve related quadratic equations and evaluate and graph quadratic functions.

Unit 3: Quadratic Equations and FunctionsYou have now been introduced to linear functions. Starting with unit 3, you begin to find solutions for functions that form curves rather than lines. Unit 3 ...

But how do you come up with a function to fit data? The basic idea is to create a quadratic function and vary the parameters such that the deviation of the actual data from the function is minimized.