Find their slopes and conclude whetever the lines are parallel, perpendicular or neither
a) y = 3 x = - 2
b) y = -4 y = x
y=m is a horizontal line
x=n is a vertical line
y=x is a sloping line
(a) perpendicular
(b) neither
a) y = 3 x = - 2
b) y = -4 y = x
x=n is a vertical line
y=x is a sloping line
(a) perpendicular
(b) neither