The transformation (x,y) →(-2x,-2y) can be achieved by a dilation followed by an isometry. Find that dilation and the isometry.   Question 6 options:   The dilation with center at (0,-2) and scale factor 1 followed by a translation to (-x, -y).   The dilation with center at (x,y) and scale factor -2 followed by a 90 clockwise rotation about (x,y)   The dilation with center at (-2x, -2y) and scale factor -2 followed by a 90 counterclockwise rotation about (-2x, -2y).   None of these   The dilation with center at (-2,0) and scale factor 2 followed by a half turn about the origin.