Learn about the X-axis and Y-axis in a graph, their definitions, equations, and real-life examples. Understand how to read and plot coordinates in the coordinate plane easily. Learn the key differences between the x-axis and y-axis with simple examples to improve your graph reading skills. 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. The point of intersection of X-axis, Y-axis and Z-axis in 3D plane is called the Origin. Each point in the 3D cartesian coordinate system is determined using its x, y and z coordinate and represented as (x, y, z).
