Given two points (x1, y1) and (x2, y2) the slope (m) is computed as follows:

1. Replacing with points A(-2, -4), B(2, 4), we get:

4. Replacing with points G(-3, -1), H(-2, -2), we get:

7. Replacing with points O(1, -3), P(2, 5), we get:

10. Replacing with points U(1, 3), V(1, 5), we get:
![m=(5-3)/(1-1)=(2)/(0)=\text{ undefined slope}]()
13. Replacing with points A(2, -1), B(-4, -4), we get:
