On the cartesian plane when the two axes, X-axis and Y-axis, intersect with each other at 90 º and there are four regions formed around it, and those regions are called quadrants. So, every plane has four quadrants each bounded by half of the axes. Learn what a quadrant is in Maths, how to identify all four quadrants on the coordinate plane, and tips for remembering signs and solving questions easily. Cartesian plane is a plane in two-dimensional space where numerical coordinates can be used to locate a particular point. Understand cartesian plane using solved examples. Learn all four quadrants of a coordinate system. The plane of the graph paper is divided into four regions by the coordinate axes and the four regions are called quadrants.