A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.
The coordinates of the points A, B, and C given in the question are:

If an object with coordinates A (x,y) is dilated by a scale factor of k, the transformation will be

Applying this rule,
we have the values of
K=10
A=(0,2)
B=(3,-2)
C=(-1,-4)
Then

Similarly, to get B'

Finally to get C'

Finally