Point P (-2, 5) is the midpoint of segment AB. Co-ordinates of A are (-5, y) and B are (x, 3). What is the value of x?
Mid-point = $$(\frac{x_{1}+x_{2}}{2} , \frac{y_{1}+y_{2}}{2})$$Â $$\Rightarrow \frac{-5+x}{2}=-2 \Rightarrow x = -4 + 5 = 1$$
so the answer is option A.
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