This scatterplot visualizes the Iris dataset, plotting petal length on the x-axis against sepal length on the y-axis, with each of the 150 flowers represented as a circle. The React-driven SVG uses D3 v7 scales, including `scaleLinear` and `extent`, to map data values to pixel coordinates. Axis components generate tick marks and labels via `xScale.ticks()`, while formatted tooltips appear on hover through SVG `<title>` elements. Data is loaded asynchronously with `d3.csv` from a remote gist, and the layout employs explicit margins for axis labels.