The midpoint of M(4, -1) and N(x, y) is P(3, -4). Find the coordinates of N.
-
A.
(2, -3) -
B.
(2, -7) -
C.
(-1, -3) -
D.
(-10, -7)
Correct Answer: Option B
Explanation
Given (M(4, -1)) and (N(x, y)) with midpoint (P(3, -4)).
(implies frac{4 + x}{2} = 3; frac{-1 + y}{2} = -4)
(therefore x = 2; y = -7)
N = (2, -7)