This reusable scatter plot shows the relationship between study hours and exam scores, with each point representing a student. The chart uses d3.scaleLinear for both axes and renders circles via SVG. The code demonstrates a modular chart function pattern, loading data from a CSV file and displaying axes with d3.axisBottom and d3.axisLeft. The visualization also includes a separate implementation that supports custom symbol shapes and color encoding through d3.symbol and d3.scaleOrdinal.