Final answer:
The lines y = 3x, y = 2x, and y = 4 are neither perpendicular nor parallel.
Step-by-step explanation:
The given lines are y = 3x, y = 2x, and y = 4.
To classify the lines:
- If two lines have the same slope, they are parallel.
- If two lines have slopes that are negative reciprocals of each other (i.e., when multiplied together they equal -1), they are perpendicular.
- If two lines do not satisfy either of the above conditions, they are neither perpendicular nor parallel.
In this case, the lines y = 3x and y = 2x have the same slope (both equal to 3).
Therefore, the lines y = 3x and y = 2x are parallel.
The line y = 4 has a slope of 0 and is not parallel or perpendicular to either of the other lines.
So, the lines y = 3x, y = 2x, and y = 4 are neither perpendicular nor parallel.