Reflect Green Line about Blue Reflection Line, GreenPoint P is center of reflection. GreenPoint P's coordinate is known.
After use
ReflectionTransform[v,GreenPoint]
I want to get this image. How to set v in ReflectionTransform[v,p]? Blue line L's equation is
y = -Sqrt[3]x + 15
line L's slope is -Sqrt[3].
