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.

Quadratic Graph Drawer This project is a C language command-line application designed to graph quadratic equations and provide a visual representation directly in the console or saved to a text file.

Calculate solutions, Vertex, coefficients etc. for quadratic funtions Display graph for a given function (doesn't have to be quadratic) Change background color in settings ...

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.