In the discussion about the electric field graphs for binary charge configurations, it is clarified that the position of curves relative to the x-axis is determined by the chosen coordinate system conventions. The graphs illustrate the electric field (E) along the line connecting two charges, where E is a vector with both magnitude and direction. Positive values indicate that E points to the right, while negative values indicate it points to the left. Understanding these conventions is crucial for interpreting the graphs accurately. The conversation highlights the importance of vector representation in electric field analysis.