Answer:



Explanation:
The general equation of an ellipse is as follows:

Where the point (h, k) is the center of the circle
a is called semi major axis: horizontal distance from the ellipse to its center
b is the semi minor axis: vertical distance from the ellipse to its center.
See the attached image.
There you can notice that

The center is at point (-3, 3)
Thus:

Then the equation sought is:

Simplify
