The coordinates of rectangle ABCD are A(2, -7), B(8, -7), C(8, -10), D(2, -10). What are the coordinates of the point of intersection of the diagonals of the rectangle after the rectangle is reflected across the x -axis?

Question

anonymous · Answer

(-5, -8.5)

 (5, 8.5)

 (5, -8.5)

 (-5, 8.5)

primeralph · Answer

the original diagonal coordinate minus the height

anonymous · Answer

huh what  is the original diagonal ?

anonymous · Answer

diagonals of a rectangle bisect each other.
point of intersection of diagonals=mid point of AC={(2+8)/2 ,(-7-10)/2}=(5,-17/2)
Its reflection on X-axis=(5,17/2)

anonymous · Answer

its reflection on X-axis=(5,8.5)

anonymous · Answer

Thank you :D