Jefferson Airplane, the Grateful Dead, Bob Dylan, and Joan Baez performed which of the following?
O A. Punk Rock
O B. Nu metal
O C. Gospel music
O D. Protest music

the tempo markings are fast-slow-fast..

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.