Answer:
(-1, 1), (-1, 4), and (1, 4) are the vertices of a right triangle.
Explanation:
If you were to graph these three points on a coordinate plane, you'll notice that two of the sides form a right angle together, which means this triangle will be a right triangle. If you're looking for something more specific, it would be a right scalene triangle, where all sides are different in a right triangle.