Question

What is the image of (-9, -1) after a dilation by a scale factor of 2 centered at the
origin?

Answer 1

top is correct

Explanation:

Answer 2

(- 18, - 2 )

Explanation:

Since the dilatation is centred at the origin then multiply each of the original coordinates by the scale factor for image, that is

(- 9, - 1 ) → (2 × - 9, 2 × - 1 ) → (- 18, - 2 )