Answer:
(10,-3)
Explanation :
We know ,
If R (x1,y1)=(-3,7)
If T (x2,y2) = ?
Midpoint of line RT = (-3+x2)/2 , (7+y2)/2
(3.5,2) = (-3+x2)/2 , (7+y2)/2
So,
3.5 = (-3 + x2)/2 --------------------|1|
2 = (7 + y2)/2 -----------------------|2|
Now , From eqn. |1|
3.5×2 = -3 + x2
7 + 3 = x2
10 = x2
From eqn. |2|
2×2 =7 + y2
4 - 7 = y2
-3 =y2
So,
T (x2,y2) = (10,-3)
