Free x and y axis math school topic guide, including step-by-step examples, free practice questions, teaching tips, and more! Learn X and Y Axes at Bytelearn. Know the definitions, see the examples, and practice problems of X and Y Axes. Your one-stop solution for instant study helps. A graph paper with an x and y axis is used in mathematics and science to plot and analyse data. The x-axis and y-axis are the two perpendicular lines that intersect at the origin and divide the graph into four quadrants. These lines, also known as the coordinate axes, are used to plot points on the graph. Free x and y axis GCSE maths revision guide, including step by step examples, exam questions and free worksheet.