A scatter plot of the Iris dataset visualizes petal length versus sepal width, with each point colored teal and mapped to scales built using `d3.scaleLinear` and `d3.extent`. The React components `AxisBottom`, `AxisLeft`, and `Marks` render SVG elements, while `useData` loads the CSV via `d3.csv`. Axis ticks and labels are styled with custom formatting, and circles include native tooltips.