Final answer:
The question relates to high school level mathematics, specifically vector geometry, and requires finding the vectors AB and CD by subtracting the coordinates of the given points.
Step-by-step explanation:
The question appears to involve points in a coordinate system which suggests a topic in mathematics, specifically within the area of vector geometry or analytic geometry. The concept of vectors is often covered in high school mathematics courses. Finding the vector sums for pairs of points given by their coordinates involves calculating the difference between corresponding coordinates.
For example, for the vector AB formed by the points (2, 3) and (-1, 4), we find the components of the vector by subtracting the coordinates:
Ax - Bx: 2 - (-1) = 3
Ay - By: 3 - 4 = -1
So the vector AB would be represented by (3, -1). Similarly, for another pair of points forming vector CD, we subtract the coordinates:
Cx - Dx: -5 - (-4) = -1
Cy - Dy: 3 - 6 = -3
The CD vector would then be (-1, -3).