A scatter plot visualizes the relationship between study hours per day and grade change, with each point colored red or green to indicate whether a student uses AI. The tooltip reveals detailed attributes per student, including AI usage, tools used, and grades before and after AI. Built with D3 v7, the visualization uses `d3.scaleLinear` for axes, `d3.axisBottom` and `d3.axisLeft` for ticks, and SVG circles with mouseover events for interactivity. Data comes from a cleaned CSV file hosted on GitHub, filtered to include only valid records.