This scatter plot visualizes the Iris dataset, mapping petal length on the x-axis and sepal length on the y-axis. It uses D3 v6’s `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to position and label the points, which are rendered as SVG circles with a radius of 5. The data is loaded asynchronously via `d3.csv` from a GitHub Gist, and the chart fills the entire browser window. The code demonstrates a minimal, full-screen scatter plot with no interactivity beyond static rendering.