Final answer:
The question pertains to the application of displacement and vector addition in Physics to determine the distance and midpoint between points represented by vectors. Without specific coordinates or a graphical representation, a general explanation of using vector addition and subtraction to find these measurements in a physics context is provided.
Step-by-step explanation:
The question involves the concept of displacement and vector addition, which is part of high school Physics. When determining the distance and midpoint between two points in the context given by various paths or displacement vectors, one needs to understand both graphical and analytical methods of vector addition. For example, if you're asked to find the distance and midpoint between points represented by vectors, you would add or subtract the vectors as required and measure or calculate their magnitude and direction.
To answer the question specifically, we would need the coordinate positions or graphical representations of these points. Assuming we have vectors A, B, C, etc., we would find the resultant vector by adding or subtracting these vectors according to the vector equation provided (like G = A + 2B - F). The magnitude of this resultant vector would be the distance between the points in question, and you could find the midpoint by calculating the halfway point in both the horizontal and vertical directions.
As for the reference point used in such questions, it depends on the context provided by the problem. For example, if you stand at the front door of your house (displacement A = 0 m) and the street is 10 m away, your displacement vector from the house to the street and back will have a magnitude of 10 m but with different directions outward and inward.