Capture relationships between data sets by graphing linear equations in Microsoft Excel 2007. Linear equations allow you to predict values within your data set and view the overall trend. Use ...

A linear relationship (or linear association) is a statistical term used to describe the directly proportional relationship between a variable and a constant.

A linear equation is drawn as a straight line on a set of axes. To draw the graph we need coordinates. We generate these coordinates by substituting values into the linear equation.

Long gone are the days when students and scientists needed to buy graphing calculators—now they have apps for that. The Quick Graph app is one example (and a good one at that), as it was voted ...

The top part of that image is the equation itself. The bottom part is a graph of the equation, which, as you can see, is exactly the same. To be fair, this equation cheats a little bit.

Linear equations can be shown on a graph. Find out how to create one in this Bitesize KS3 maths video.