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.

A quadratic graph can be used to find an estimate of the value of x from a given value of y, or the value of y from a given value of x A value of x will give one y -value.

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