SOLUTION: Find the endpoint C of the line segment CD with D(3,5) and midpoint M(-4,6)

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Question 527480: Find the endpoint C of the line segment CD with D(3,5) and midpoint M(-4,6)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the endpoint C of the line segment CD with D(3,5) and midpoint M(-4,6)
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The midpoint coordinates are the average of the corresponding endpoint
coordinates:
Equations:
Let C = (x,y)
(x+3)/2 = -4
x = -8-3 = -11
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(y+5)/2 = 6
y = -5+12
y = 7
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C: (x,y) is (-11,7)
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Cheers,
Stan H.
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