This reusable D3 scatter plot displays the Iris Dataset, mapping petal width to the x-axis and sepal length to the y-axis, with each of the three species represented by a distinct symbol. The chart is built using D3's `scaleLinear`, `scaleOrdinal`, `extent`, `axisLeft`, `axisBottom`, and `symbol` APIs, rendered as SVG with a configured margin and symbol size. The implementation follows the "Towards Reusable Charts" pattern, exposing a configurable `scatterPlot` function that accepts data, value accessors, and layout parameters.