SOLUTION: finf the missing endpoint if M is the midpoint m(-4,-6) and K(-7,-3); Find L

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Question 1045189: finf the missing endpoint if M is the midpoint
m(-4,-6) and K(-7,-3); Find L
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let the coordinates of L be:
L( x[1], y[1] )
--------------
+%28+-7+%2B+x%5B1%5D+%29+%2F+2+=+-4+
+-7+%2B+x%5B1%5D+=+-8+
+x%5B1%5D+=+-1+
and
+%28+-3+%2B+y%5B1%5D+%29+%2F+2+=+-6+
+-3+%2B+y%5B1%5D+=+-12+
+y%5B1%5D+=+-9+
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L( x[1], y[1] ) = L( -1, -9 )
is the other endpoint