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Introduction
Introduction of Coordinate Geometry

Coordinate geometry is a plotting points, lines and curves on an x and y axis.
The coordinates of a point on the x-axis are of the form (x, 0) and that of the point on the y-axis are (0, y).

Coordinate Axes

The plane is called the Cartesian, or coordinate plane and the lines are called the coordinate axes.
The horizontal line is called the x - axis and the vertical line is called the y - axis. coordinate geometry

Quadrants

The coordinate axes divide the plane into four parts called quadrants.
The coordinates of a point are of the form (+ , +) in the first quadrant, (–, +) in the second quadrant, (–, –) in the third quadrant and (+, –) in the fourth quadrant, where '+' denotes a positive real number and '–' denotes a negative real number. cordinate geometry

X-Coordinate or Abscissa and Y-Coordinate or Ordinate

The distance of a point from the y-axis is called its x-coordinate or abscissa.
The distance of the point from the x-axis is called its y-coordinate or ordinate.

Origin

The point of intersection of the axes is called the origin. The coordinates of the origin are (0, 0). coordinate geometry

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