Answer:
Neither
Step-by-step explanation:
Solve both equations for y or point Slope form.
y = 3x + 5 is already done.
Second equation
-3x - y = 9 add y - 9 to both sides
y = - 3x - 9
They have opposite slopes but not reciprocal and the slopes are not equal to each other so they are neither parallel or perpendicular.
