This scatterplot displays the relationship between age and income, with each point representing an individual from a medical insurance cost dataset. The visualization shows how income distribution varies across different ages, using blue and red circles to distinguish income levels. Built with React and D3 v7, the code uses `scaleLinear` to map the data domains, `axisBottom` and `axisLeft` for the axes, and the `join` pattern to bind data to SVG circles. The data is loaded from a CSV file containing insurance records.