In mathematics, a line is a geometric object that extends infinitely in two opposite directions. It can be described as a straight, one-dimensional figure with no thickness or width, composed of an infinite number of points that are all on the same plane.

Lines can be defined in various ways, but one of the most common is through two points. Given any two distinct points, there is a unique line that passes through both of them. This line can be represented using the slope-intercept form, where the equation of the line is y = mx + b, with m being the slope and b being the y-intercept.

Lines are used extensively in geometry, algebra, and other branches of mathematics, as well as in various scientific fields such as physics and engineering. They are important for understanding the relationships between points, and can be used to represent a variety of phenomena, such as the paths of moving objects or the boundaries of shapes.

In mathematics, a line is a straight path that extends infinitely in both directions. It is one of the fundamental objects in geometry and is often represented using a linear equation of the form y = mx + b, where m is the slope of the line and b is the y-intercept.

Lines can be described using various properties, such as their length, slope, and position in relation to other lines or geometric shapes. They are often used to represent relationships between points or to model real-world phenomena such as the path of a moving object or the trajectory of a particle in physics.

In art and design, lines are also important elements that can be used to create a sense of movement, depth, and texture. Different types of lines, such as straight, curved, thick, or thin, can be used to convey different emotions and moods in a piece of artwork.

In mathematics, a line is a straight, one-dimensional figure that extends infinitely in both directions. It is often represented graphically as a thin, elongated geometric shape with no thickness or width. A line is defined by any two points on the line, and any additional points on the line can be obtained by extending the line infinitely in both directions.

In geometry, lines are fundamental concepts that are used to describe and study other shapes and figures, such as triangles, circles, and polygons. They are also used to model real-world phenomena, such as the path of a moving object or the trajectory of light or sound waves.

In everyday language, the term "line" can also refer to a sequence of words or phrases arranged in a particular order, such as the lines of a poem or the lines of dialogue in a play or movie. It can also refer to a physical mark or feature that is long and narrow, such as the lines on a road or the lines on someone's face.


There is a line AB, which starts from ‘A’ and ends at ‘B’ or starts from ‘B’ and ends at ‘A’. Here in between two points ‘A’ & ‘B’.