This example builds a line chart from Titanic passenger data, plotting the relationship between Age and Fare for a subset of passengers. It uses D3.js v7 to load data from a CSV file via `d3.csv`, then slices the data to focus on a specific range of rows. The chart includes linear scales, axes with labels, and a line generator (`d3.line`), all rendered as SVG elements within an HTML page. The visualization illustrates how D3 can handle data ingestion, scaling, and basic chart construction in a straightforward workflow.