Question

The ...... is the ratio of new/old.reductioncenter of dilationenlargementscale factor

Answer 1

Scale factor

Step-by-step explanation:

When a figure is dilated, the scale factor is what represents the relationship between the pre-image and the image.

• If the length of the side of a rectangle in the pre-image = 4; and

,

• The corresponding side length in the dilated image = 8

Then:

`\begin{gathered} \text{Scale Factor=}\frac{\text{Side length in new rectangle}}{\text{Side length in old rectangle}} \\ =(8)/(4) \\ k=2 \end{gathered}`

The scale factor is the ratio of new/old.