information:extraction, structural:expansion
Point–slope form or Point-gradient form

A non-vertical line can be defined by its slope m, and the coordinates x 1, y 1 {\displaystyle x_{1},y_{1}} of any point of the line. In this case, a linear equation of the line is

or

This equation can also be written

for emphasizing that the slope of a line can be computed from the coordinates of any two points.