What's a possessive pronoun

Possessive pronouns describe what things belong to which people, like "her shoe" or "the book is mine." Possessive pronouns can be adjectives, like "his bicycle," or they can stand in for nouns, like "the seats are theirs."

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.