Answer:
D(0, 4.5 )
Step-by-step explanation:
D is the midpoint of the line BC
Use the midpoint formula to find coordinates of D
[ 0.5(x₁ + x₂ ), 0.5(y₁ + y₂ ) ]
with (x₁, y₁ ) = B(1, 5) and (x₂, y₂ ) = C(- 1, 4)
D = [0.5(1 - 1), 0.5(5 + 4) ] = (0, 4.5 )
