A dilation with a scale factor of 4 maps figure A onto A'. By what scale factor would another dilation map figure A' back to figure A?

is it 1/4?

yes.

Yes, you're correct! If a dilation with a scale factor of 4 maps figure A onto A', then another dilation with a scale factor of 1/4 would map figure A' back to figure A.

Yes, you're correct! To find the scale factor that maps figure A' back to figure A, you need to take the reciprocal of the original scale factor. Since the original dilation had a scale factor of 4, the reciprocal would be 1/4. So, another dilation with a scale factor of 1/4 would map figure A' back to figure A.