Respuesta :

Dilation involves changing the size of a shape

The vertex of the image is (5,40)

How to determine the image

The vertex of the pre-image is given as:

(1,8)

The scale factor (k) is given as:

k = 5

So, the vertex of the image is:

Vertex = (1,8) * 5

This gives

Vertex = (5,40)

Hence, the vertex of the image is (5,40)

Read more about dilation at:

https://brainly.com/question/3457976