Xkoordinaatti

Xkoordinaatti is a term used in mathematics and coordinate geometry to refer to the horizontal position of a point on a two-dimensional Cartesian plane. It is represented by the first value in an ordered pair (x, y), where 'x' denotes the distance of the point from the vertical y-axis.

In a standard Cartesian coordinate system, the x-axis runs horizontally from left to right, with positive values to the right of the origin and negative values to the left. The origin itself is the point where the x-axis and y-axis intersect, with an x-coordinate of zero.

The x-coordinate determines a point's position relative to the y-axis. A point with a positive x-coordinate is located to the right of the y-axis, while a point with a negative x-coordinate is located to the left. The magnitude of the x-coordinate indicates the distance from the y-axis. For example, a point at (5, 3) has an x-coordinate of 5, meaning it is 5 units to the right of the y-axis.

Understanding the x-coordinate is fundamental for plotting points, graphing functions, and performing various geometric calculations. It is a key component in defining the location and relationships of objects within a planar space.