Mackenzie needs to determine whether the rectangles are proportional. Which process could she use? Check all that apply.
[Not drawn to scale)
She could compare the ratios of the sides of the pre-image to the corresponding sides of the image in the proportion
15 - 2
She could verify that adding the same number to each side in the pre-image does not result in the corresponding side
length of the image
She could verify that multiplying each side in the pre-image by 2 results in the length of the corresponding side in the