SOLUTION: Find the coordinates of the missing endpoint given that B is the midpoint of ac.c(-7,-4)b (3,5)

Algebra ->  Pythagorean-theorem -> SOLUTION: Find the coordinates of the missing endpoint given that B is the midpoint of ac.c(-7,-4)b (3,5)      Log On


   

Question 344336: Find the coordinates of the missing endpoint given that B is the midpoint of ac.c(-7,-4)b (3,5)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the midpoint formula,
x%5Bm%5D=%28x%5Ba%5D%2Bx%5Bb%5D%29%2F2
3=%28x%5Ba%5D-7%29%2F2
Solve for x%5Ba%5D
.
.
.
y%5Bm%5D=%28y%5Ba%5D%2By%5Bb%5D%29%2F2
5=%28y%5Ba%5D-4%29%2F2
Solve for y%5Ba%5D