Question

What is the image of (−7,−8) after a dilation by a scale factor of 4 centered at the origin?

Answer 1

Answer:   (-28, -32)

Explanation:

We multiply each coordinate of the given point by the scale factor

-7*4 = -28

-8*4 = -32

The preimage point (-7,-8) dilates to (-28, -32)

This trick only works if the center of dilation is the origin.