Find the coordinates of the other endpoint of a segment with the given endpoint and midpoint M. - Show Work

Question

R(2,6)

M(-1,1)

Answer 1

S (x, y) is the other end point

 

The x-coordinate:

(2 + x) / 2 = -1

2 + x = -2

x = -4

 

The y-coordinate

(6 + y) / 2 = 1

6 + y = 2

y = -4

 

S (-4, -4)