If an auxiliary view shows a slanted part, and the slanted part appears as a line in the right-side view, what is the auxiliary view called?

right - side auxiliary veiw

Explanation: it's a right-side veiw that's slanted therefore it's also an auxiliary veiw. A right-side auxiliary veiw

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.