The midpoint of M(4, -1) and N(x, y) is P(3, -4). Find the coordinates of...
FURTHER MATHEMATICS
WAEC 2018
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: B. (2, -7)
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)
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