A reusable D3 scatter plot framework displays COVID-19 death rolling averages across the United States over time, sourced from NY Times data. The SVG visualization uses d3.scaleTime and d3.scaleLinear to map dates and values, with d3.axisBottom and d3.axisLeft rendering month, year, and numeric tick labels. Custom title annotations mark the vaccination milestone at 30%, while the code demonstrates a modular chart factory pattern with getter/setter methods for width, height, data, and margins, following the Towards Reusable Charts paradigm.