The problem presented asks to find the coordinates of a fourth point such that the four points form the vertices of a rectangle. The three given points are already marked on a coordinate grid.

Steps to find the fourth point:

1. Identify the coordinates of the three given points on the grid.
2. Use the properties of a rectangle: In a rectangle, opposite sides are parallel, and adjacent sides are perpendicular. Diagonals of a rectangle also bisect each other.

Let's find the fourth point:

Looking at the image, we can observe three points:

• The point at (-3, 3)
• The point at (2, 3)
• The point at (2, -1)

Now, to complete the rectangle:

• The fourth point should lie vertically aligned with the point at (-3, 3) (same x-coordinate), and horizontally aligned with the point at (2, -1) (same y-coordinate).

So, the fourth point would be (-3, -1).

Thus, the coordinates of the fourth point are (-3, -1).

Let me know if you'd like further clarification or more details on the method!

Here are some related questions:

1. How can you verify that four points form a rectangle using distances?
2. What is the midpoint formula, and how can it be used in identifying rectangle diagonals?
3. Can you describe how the slope of perpendicular sides in a rectangle helps in identifying vertices?
4. How do diagonals help confirm the shape of a rectangle?
5. How would this problem change if you were asked to form a square instead of a rectangle?

Tip: When working with coordinates, always check the properties of shapes (such as parallelism and perpendicularity) to guide your answer.