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Pre-image ABCD was dilated to produce image A'B'C'D' .

What is the scale factor from the pre-image to the image?

Enter your answer in the box as a fraction in simplest form.

Preimage ABCD was dilated to produce image ABCD What is the scale factor from the preimage to the image Enter your answer in the box as a fraction in simplest f class=

Respuesta :

To find the scale factor, divide any part of the figure A'B'C'D' (the image) over the corresponding part of ABCD (preimage)

In this case, we know what CD and C'D' are, so we can say...

scale factor = (length of C'D')/(length of CD)
scale factor = (8)/(14)
scale factor = 4/7

Answer: 4/7

johnhrbek

To find a scale factor of a pre-image you just divide the smaller shape by the larger shape. That easy.

8/14 = 4/7

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