This example uses a line graph to show bank failure trends over time, with a dropdown menu toggling between the total number of failures and the estimated loss in thousands of USD. It uses d3.line, d3.scaleTime, and d3.scaleLinear to render the chart, with d3.csvParse loading data from a gist and d3.timeParse converting date strings. A menu component updates the view, while axes are drawn using d3.axisLeft and d3.axisBottom.