This line chart visualizes the relationship between study hours and exam scores for a small dataset of students. The chart renders a smooth monotone curve through the data points, using blue dots to mark individual observations and a matching blue line to emphasize the overall trend. Built with D3.js v7, the visualization loads CSV data from a GitHub gist, applies linear scales with nice tick marks, and draws axes with labels. The tooltip functionality on hover is implemented but not fully connected in the visible code.