Pre-image ABCD is dilated to be image A′B′C′D′ . The origin is the center of dilation.
What scale factor is used to create the dilation?
Notice that
5A = 5 (1,2) = (5,10) = A'
5B = 5 (2,2) = (10,10) = B'
5C = 5 (2, 1) = (10, 5) = C'
5D = 5 (1, 1) = (5, 5) = D'
So....the scale factor is 5
+912 
