This reusable scatter plot displays age against fare price, with points colored by gender. The visualization alternates between two halves of the dataset every five seconds using `setInterval`, clearing the SVG and re-rendering with D3’s `selectAll` and `join` pattern. It uses `scaleLinear`, `scaleOrdinal`, `extent`, and `axisLeft`/`axisBottom` from D3 v6 to build axes and scales. The custom `scatterPlot` function exposes chainable methods for width, height, margins, and radius, while the data loads from a CSV URL via `d3.csv`.