3. Where can you find out more information about a piece of art? O Social media
O Museum brochures
AC
O Museum audio tours
All of the above

it should be all of the above so letter d

Explanation:

let me know if its correct or incorrect I hope this help you

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.

lithograph is created by etching the flat surface of a print.