Answer:
Step-by-step explanation:
Firstly we know that in geometry parallel lines have the same slope
[tex]m_1=m_2[/tex]
and ,
perpendicular lines have the slope denoted by the formula
[tex]m_1m_2=-1[/tex].
Secondly ,
x = 1 is a line that is parallel to the y-axis, and any line parallel to the y-axis has undefined slope.
and the slope of a line perpendicular to x = 1 would be parallel to the x-axis and any line parallel to the x-axis has the slope of zero.