Revise how to plot a linear equation graph. Learn how to read x and y coordinates from a graph in this BBC Bitesize maths KS3 guide.

Graphs of two or more straight lines can be used to solve simultaneous linear equations. The graph of a straight line can be described using an equation close equationA mathematical statement ...

Initially launched as a way to give you tips on solving difficult math equations lat year, OneNote's Ink math assistant can now draw graphs of your equations for a little extra help.

The equations are used in calculus to describe relationships among one or more variables. A solution to any series of equations can be found by graphing both equations and finding out where they meet.