Polygon abcd, shown in the figure, is dilated by a scale factor of 8 with the origin as the center of dilation, resulting in the image a′b′c′d′ hat is the slope of c'd'

Since the transformation done is dilation with dilation factor of 8 with the center as the dilation the coordinates of C' is (45, 36) and of D' is (36, 18). So, the slope is
m = (18 - 36) / (36 - 45)
m = 2
This slope is also the slope between C and D.