This D3 scatter plot visualizes the Iris Dataset, mapping petal length on the x-axis against sepal length on the y-axis using `d3.scaleLinear` for both scales. The reusable chart module builds an SVG with axes via `d3.axisBottom` and `d3.axisLeft`, then renders data points as circles with a fixed radius of 5. The implementation follows the D3 reusable pattern, with configurable margins, dimensions, and accessor functions for the data fields.