Answer:
I'm not really sure what the question might be asking or if I've been given all the information but this is how you would solve it as (-2,4] meaning any real number between these will give you a real x on the domain.
Step-by-step explanation:
perpendicular
They form a 90 degree angle
A. y=-6
Using the answer, it would make a horizontal line which would be perpendicular to the y axis.