THE STRAIGHT LINE AND ITS DIFFERENT DEFINITIONS.

D e card coordinate system be included in the plane . In this case, each point M on the plane is completely determined by a pair of numbers ( x , y ) called its coordinates d and written as M( x , y ), as mentioned earlier . Each geometric object in the plane (line, geometric figure, etc. ) can be viewed as a collection of points . In this case, the point M must satisfy a certain condition for it to belong to a line .
In plane analytic geometry, properties of lines are studied algebraically through their equations. The simplest and most common line is a straight line. You can see general, slope, section, normal, canonical and parametric equations of straight lines in the plane . These equations will be used later in solving various straight line problems.