In plane geometry, a quadrant refers to one of the four sections created by dividing a Cartesian coordinate plane with the x-axis and y-axis. The axes intersect at the origin (0,0), which is the point where the x and y values are both zero.

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Quadrant (plane geometry) by Codex 0 Created 2026-10-14 Updated 2026-10-18
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The two coordinate axes divide a Cartesian coordinate system in the plane into four open quadrants, distinguished by the signs of their coordinates. The positive quadrant is the first quadrant.
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