Line
A straight path that goes in two directions forever.
In geometry, a line is a straight path that extends forever in both directions. It has no thickness or width, and is defined by two points that it passes through. A line can also be expressed as a set of points that satisfies a linear equation in two variables. Lines are one of the most fundamental geometric concepts and are used extensively in various branches of mathematics, science, and engineering. Some properties of lines include that any two points on a line share the same slope, and the angle between two intersecting lines is determined by their slopes.
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