The two line equations are and
.
Line equation in slope-intercept form , where
is slope and
is
-intercept.
Consider .
Compare it with slope-intercept form.
\ and
.
Consider .
Compare it with slope-intercept form.
\ and
.
Since slopes of the above two lines are not same, the lines are not parallel.
\Since slopes of the above two lines are not negative reciprocals of each other, the lines are not perpendicular.
\The lines neither parallel nor perpendicular.
\Neither.