In each of the following graphs, the two given polygons are similar. write precisely a single dilation (coordinates of center and coefficient) by which the image (labeled with primed letters) was obtained.

See below.

Step-by-step explanation:

The center of the dilation is at the point (6, -6) and the coefficient is 2.

( Note that  the corresponding sides of the image are 2 * the sides of the original polygon).

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5