SOLUTION: Point a is at (-6,5) and point m is at (-1.5,-1) point m is the mid point of point a and point B what are the coordinates of point B?

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Question 1048389: Point a is at (-6,5) and point m is at (-1.5,-1) point m is the mid point of point a and point B what are the coordinates of point B?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi  

A(-6,5)

B(x , y)  Midpoint (-1.5,-1) Pt(x,y):  ( %28x%5B1%5D+%2B+x%5B2%5D%29%2F2, %28y%5B1%5D+%2B+y%5B2%5D%29%2F2++%29)

(-6+x)/2 = -1.5   -6+x = -3     x = 3

(5 + y)/2 = -1     5+y = -2      y = -7

B(3,-7)