This line chart visualizes the relationship between Age and Monthly Income, using smooth curve interpolation to connect data points sourced from an external CSV file. The visualization includes labeled axes for both variables and a tooltip that appears on hover, displaying the specific values of each data point. Built with D3 v7, the chart employs d3.line with curveMonotoneX, d3.axisBottom, and d3.axisLeft to render the SVG elements, with interactive circle markers that respond to mouse events for enhanced data exploration.