SOLUTION: the midpoint of cm is (5 -11). one endpoint is s(3 5). what are the coordinates of endpoint m

Question 936213: the midpoint of cm is (5 -11). one endpoint is s(3 5). what are the coordinates of endpoint m
Found 2 solutions by ewatrrr, srinivas.g:
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
the midpoint of cm is (5 -11). TY for clarifying
Midpoint Pt(x,y): ( , )
(3, 5)
(x, y)
(3-x)/2 = 5, x = -7
......
(5 - y)/2 = -11, x = 27
....
checking
(3, 5)
(-7,27) M = (5, -11)
Answer by srinivas.g(540) (Show Source): You can put this solution on YOUR website!
formula: mid point( x,y) =((x1+x2)/2,(y1+y2)/2)
midpoint( x,y)=(5,-11)
one point(x1,y1)= (3,5)
(5,-11)= ((3+x2)/2,(5+y2)/2)

5*2 = 3+x2 -11*2 =5+y2
10=3+x2 -22=5+y2
10-3=x2 -22-5=y2
7=x2 -27=y2
hence other end point(x2,y2)=(7,-27)
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