# The dashed triangle is the image of the solid triangle. The center of dilation is (−4,−4). What is the scale factor used to create the dilation?

##### 1 Answer

Sep 23, 2016

#### Explanation:

Looking at the figure and its image, three things are immediately obvious.....

The image is bigger

The image is inverted.

The figure and the image have a common point.

The common point is the centre of dilation.

The fact that it lies BETWEEN the image and the figure means that the SF is a negative number.

This accounts for the fact that the image is inverted.

To find the Scale Factor divide

Looking at the horizontal lines we see..