The apparent value and intensity of a color (or how you see it) is especially dependent upon

The intensity and the apparent value of a color is especially dependent upon the other colors that happen to surround it. For instance, the changing value and hue of the circles affect the readability. Because of the differences in human vision, not all individuals will be able to decode the change in hue at the same time.

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.