👉 In mathematics, a quadrant is a part of the plane that lies between two perpendicular lines (usually called axes) and contains all points whose coordinates are positive. The first quadrant is defined as the set of all x-coordinates, while the second quadrant is defined as the set of all y-coordinates. A quadrant is named after its axis of symmetry, which divides it into four equal parts. These quadrants can be arranged in a grid on the Cartesian plane, with each quadrant having two lines passing