Aline segment has the endpoints s(1, 4) and t(7, 8). find the coordinates of its midpoint m.

M(4, 6)

given endpoints (x₁, y₁) and (x₂, y₂) then the coordinates of the midpoint is

M = [ (x₁ + x₂ ), (y₁ + y₂ )]

here (x₁, y₁) = (1, 4) and (x₂, y₂) = (7, 8)

M = [ (1 + 7 ), (4 + 8)] = (4, 6)