Coordinate plane with squares wxyz and w prime x prime y prime z prime and points a, b, c, and d at w negative 4 comma 3, x negative 2 comma 3, y negative 4 comma 1, z negative 2 comma 1, w prime negative 6 comma 1, x prime 0 comma 1, y prime negative 6 comma negative 5, z prime 0 comma negative 6, a negative 5 comma 4, b negative 3 comma 6, c negative 3 comma 4, and d negative 1 comma 4 square wxyz was dilated by a scale factor of 3 to create square w'x'y'z'. which point is the center of dilation? b a d c