Q1
The point where the x-axis and y-axis meet is called the:
Aorigin
Bquadrant
Ccoordinate
Daxis point
CBSEClass 9 (CBSE)MathematicsCh 3 · Topic 1
The Cartesian Plane
Learning about the coordinate plane formed by two perpendicular axes.
Core concept
Each quadrant has a distinct combination of positive/negative x and y values: Quadrant I (x positive, y positive), Quadrant II (x negative, y positive), Quadrant III (x negative, y negative), and Quadrant IV (x positive, y negative). This quadrant system allows any point's approximate location to be immediately understood just from the signs of its coordinates, before even considering the exact numerical values, making it a foundational tool for coordinate geometry and graphing.
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CBSE class 9 the cartesian plane
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• The Cartesian plane has a horizontal x-axis and vertical y-axis meeting at the origin (0,0).
• The plane is divided into four quadrants, numbered counter-clockwise from the top-right.
• Quadrant I: (+,+). Quadrant II: (-,+). Quadrant III: (-,-). Quadrant IV: (+,-).
• The quadrant system helps quickly identify a point's general location from its coordinate signs.