Final answer:
The mutator method for the Rectangle class is the translate method, which modifies the position of a rectangle by changing its x and y coordinates.
Step-by-step explanation:
The mutator method for the Rectangle class is the translate method. This method is used to modify the position of a rectangle by changing its x and y coordinates.
For example, if you have a rectangle with an initial position at (3, 5), you can use the translate method to move the rectangle by a certain distance: rectangle.translate(2, 3). This would change the position of the rectangle to (5, 8).
The other options mentioned (getHeight, getWidth, and isEmpty) are accessor methods that provide information about the rectangle but do not modify its state.