What you're seeing is indeed the truth.
(insert JoJo reference)

You are seeing the movements created by your abilities, but you will never arrive at the truth that's going to happen. None who stand before me shall ever get there, regardless of their abilities. This is the power of Gold Experience Requiem.

Explanation:

coordinates of r(b,c)

slope of nm is 0.

step-by-step explanation:

the midpoint of the line joining the points (x₁,y₁) and (x₂,y₂) is given by

the midpoint of the line segment nk is given by

∴r(b,c)

the slope of the line joining the points (x₁,y₁) and (x₂,y₂) is given by

slope of rs is

hence

coordinates of r(b,c)

and slope of nm is 0.