<span> line passes through the points (p, a) and (p, –a)
where p and a are real numbers and p ≠ 0
(p, a) and (p, –a) m = Cannot divide by ZERO, there is no slope to this Line.
slope of the line: no slope (does not exist)
equation of the line: x = p Perpendicular Line </span><span>slope of a line perpendicular to the given line: would be m = 0, horizontal Line y= 3 </span>y- intercept: none