SOLUTION: Find the coordinates of the other endpoint of a segment with an end point of X(13,5)and Midpoint M(8,3)

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Question 842855: Find the coordinates of the other endpoint of a segment with an end point of X(13,5)and Midpoint M(8,3)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The midpoint is the average of x and y values.
x%5Bm%5D=%28x%5B1%5D%2Bx%5B2%5D%29%2F2=%28x%5B1%5D%2B13%29%2F2=8
x%5B1%5D%2B13=16
x%5B1%5D=3
y%5Bm%5D=%28y%5B1%5D%2By%5B2%5D%29%2F2=%28y%5B1%5D%2B5%29%2F2=3
y%5B1%5D%2B5=6
y%5B1%5D=1
(3,1)
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