Answer: Neither
Explanation:
Parallel lines means they have the same slope.
Perpendicular lines mean they have the negative reciprocal slopes.
If you were to manipulate 3y= -4x + 6 you would get:
y= -4/3x +2
In comparison to y= -3/4x -5
Both equations don't have the same slope (parallel), and aren't negative reciprocal slopes.