This interactive scatter plot displays car attributes from the UCI Machine Learning Repository’s Auto MPG dataset. Two dropdown menus let users select which numeric columns (such as horsepower, weight, or acceleration) appear on the x- and y-axes. The visualization uses d3.scaleLinear, d3.axisBottom, and d3.axisLeft to render axes, while SVG circles transition smoothly between positions when menu selections change. The code implements reusable dropdownMenu and scatterPlot modules that manage data joins and update patterns.