Excel displays the linear equation on the chart in the y=mx+b format. Advertisement. Article continues below this ad. More For You. How to Make an Income & Expense Comparison Bar Chart in Quicken.

A linear equation is represented as a line graph. In order to draw the line graph we require several pairs of coordinates. These coordinates represent the relationship given in the equation.

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.