Find the coordinates of the other endpoint of the​ segment, given its midpoint and one endpoint.​

Question

mid point (-13,12) end point (-19,9)

Answer 1

Coordinates of the Midpoint ((x1+x2)/2, (y1+y2)/2)

substitute the coordinates

(-19+x2)/2 =-13

multiply both sides by 2

-19+x2=-26

Add 19 to both sides

x2=-7

Similarly for y coordinate value

(9+y2)/2= 12

9+y2= 24

y2= 15

the other end point is (-7, 15)