Answer:
Neither
Explanation:
Two lines are parallel if they have the same slope and never intersect. Two lines are perpendicular if their slopes are negative reciprocals of each other.
The slope of a line can be found using the following formula:

where (x1, y1) and (x2, y2) are two points on the line.
In this case, x and y are both equal to 4, so the line is a vertical line.
Vertical lines do not have a slope, so they cannot be parallel or perpendicular to any other line.
Therefore, the answer is neither.