Respuesta :

QUAD magnified 4 times gives Q'U'A'D'

D(7,0)

Q(0,0)

Then center of rectangle is at (D -Q)/2= 3.5

Area of rectangle QUAD= (7-0)•(5-0) = 35

4times area QUAD = 4x35= 140

Then

Q'= (0,0)

Q'U'= 4xQU = 4x5 = 20