Pythagoras, she muses, “didn’t even have plumbing—and he was like, ‘Let me worry about y = mx + b’”—referring to the equation describing a straight line on a two-dimensional plane.

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