Question

Find the midpoint of a segment whose endpoints are (-9,5) and (5,-1)

Answer 1

The formula of a midpoint:

$\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)$

We have

(-9, 5), (5, -1)

Substitute:

$\dfrac{-9+5}{2}=\dfrac{-4}{2}=-2\\\\\dfrac{5+(-1)}{2}=\dfrac{4}{2}=2$

Answer: B) (-2, 2)