This scatter plot visualizes the Iris Dataset, mapping petal length on the x-axis and sepal length on the y-axis as circular marks. Built with D3 v6, it uses `d3.csv` to load data, `d3.scaleLinear` for both axes, and `d3.extent` to set the domains. Each circle renders in SVG and includes a native `<title>` element that displays the exact coordinate values on hover, while `d3.axisLeft` and `d3.axisBottom` generate the labeled tick marks.