Question

Under the dilation, the point (-3, -4) is moved to (-15, -20)

what is the scale factor of the dilation?

Answer 1

Doing this for the points, I took the test, its 5.

Answer 2

The scale factor of dilation is: 5

Explanation:

" A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

If the scale factor is greater than 1, the image is an enlargement (a stretch) " .

Whenever we multiply an coordinates or for some figure if all the coordinates get multiply by same factor 'a' then 'a' is called as scale factor in the dilation.

Here in this question:

(-3,-4) is moved to (-15,-20).

Here when (-3,-4) is multiplied by 5 we get the coordinate as: (-15,-20).

Hence, the scale factor is 5.