A simple scatter plot displays the Iris dataset, mapping petal width on the x-axis against sepal length on the y-axis. Purple semi-transparent circles represent individual data points, with axes labeled "Sepal Length" and "Petal Length." The visualization is built with D3 v5, using `scaleLinear`, `axisLeft`, and `axisBottom` to construct the scales and axes, and SVG circles for rendering. Data is loaded as CSV from a GitHub gist and parsed with D3's `csv` method.