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I need help asap. ive tired a lot and cant get it

I need help asap. ive tired a lot and cant get it-example-1
User Robaticus
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4 votes
The solution:
Since the coordinates of point A are given along with coordinate of Midpoint. We can easily locate the coordinates for point B.

By using the equation:
M=(x1+x2)/2 , (y1+y2)/2

Substituting M value of (-2,2):
(-2,2) = (-5+x2)/2 , (7+y2)/2
We can now compute for x2 and y2 values via subject of the formula method:
-2 = (-5+x2)/2 multiply by 2 of left
-4 = (-5+x2) add +5 on left
1 = x2

2 = (7+y2)/2
4 = 7+y2
-3 = y2

Therefore: the coordinates for point B are (1,-3).
I need help asap. ive tired a lot and cant get it-example-1
User Olivier Liechti
by
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