The position of the line relative to the coordinate system

The straight line has the equation ax + by + c = 0, consider the special cases:

1) a = 0, b ≠ 0. Then the equation of a straight line takes the form:



.



All points of the line, regardless of the abscissa x, have the same ordinate



and straight line parallel to the x axis. If c = 0, then the straight line coincides with the x axis.

2) a