Question

What are the coordinates of the midpoint of the segment whose endpoint are P(-6, 3) and Q(9, -11)

Answer 1

Answer:

(-1.5, -1)

Step-by-step explanation:

Answer 2

Answer:

$\large\boxed{C.\ (1.5,\ -4)}$

Step-by-step explanation:

The formula of a midpoint of a segment AB with endpoints at A(x₁, y₁) and B(x₂, y₂):

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

We have the points P(-6, 3) and Q(9, -11).

Substitute:

$M_{PQ}(x,\ y)\\\\x=\dfrac{-6+9}{2}=\dfrac{3}{2}=1.5\\\\y=\dfrac{3+(-11)}{2}=\dfrac{-8}{2}=-4$