Answer:
From the given figure:
Labelled the triangle as A, B and C.
Coordinates of triangle are:
A(-3, -2) , B(-7, -3) and C(-4, -5)
The rule of dilation with scale factor k = 3 and centered at (-7, -6) is:

or

Now, find the dilated image of the given figure:



You can see the graph of the dilated figure as shown below.