Final answer:
It is impossible to determine which classification (by Russell or Jamie) is correct without the corresponding proofs or evaluation criteria for the quadrilateral with the provided vertices.
Step-by-step explanation:
The question requests an examination of proofs regarding the classification of a quadrilateral with given coordinates for its vertices. However, the question does not provide the proofs made by Russell and Jamie nor the criteria they used for classification, which makes it impossible to determine who, if either, is correct.
Regarding the irrelevant parts mentioned in the question, there is information related to electric potentials and point charges, which do not correlate with the classification of a quadrilateral, indicating there might have been a mix-up or typo in the question details provided.
Without the necessary information or proofs presented by Russell and Jamie, an accurate evaluation cannot be made, therefore, no judgment can be given on which classification (by Russell or Jamie) is correct.