The midpoint of the segment joining $(x_1, y_1)$ and $(x_2, y_2)$ is:
A$\left(\dfrac{x_1 - x_2}{2}, \dfrac{y_1 - y_2}{2}\right)$
B$\left(\dfrac{x_1 + x_2}{2}, \dfrac{y_1 + y_2}{2}\right)$
C$(x_1 x_2, y_1 y_2)$
D$(x_1 + x_2, y_1 + y_2)$
Answer & Solution
Correct answer: B. $\left(\dfrac{x_1 + x_2}{2}, \dfrac{y_1 + y_2}{2}\right)$
Midpoint formula: average each coordinate.
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