How to Estimate the Y Intercept in Excel. When you graph a series of (x,y) coordinates in Microsoft Excel 2010, you can use the program's built-in functions to display the equation for the line ...

Learn and revise how to plot coordinates and create straight line graphs to show the relationship between two variables with GCSE Bitesize Edexcel Maths.

GCSE WJEC Equations of lines – WJEC y = mx + c Look at how to plot in all four quadrants of a graph and draw straight lines. We can determine information about the gradient and position of the ...