Answer:
x = - 4
Explanation:
A line perpendicular to the x- axis is a vertical line parallel to the y- axis.
The equation of a vertical line is
x = c
where c is the value of the x- coordinates the line passes through
The line passes through (- 4, - 2) with x- coordinate of - 4, thus
x = - 4 ← equation of perpendicular line