Suppose that rectangle abcd is dilated to a'b'c'd' using vertex (0, 0) as the center and a magnitude of 2. what are the coordinates of a'?

Since you didn't give us the original coordinates of the rectangle, i can't give you an exact answer. however, i can explain how to find the answer.if the dilation has a magnitude of 2, we just multiply the coordinates by 2.  so if a was (3, 5) it would become (6, 10).

-437 
12*3-3*13*4*3-5
36-39*4*3-5
36-156*3-5
36-468-5
-432-5
-437