This scatterplot shows the relationship between the average price of boba tea and the cost of living index across 34 U.S. cities. Each purple circle represents a city, with hover interactions revealing a yellow tooltip displaying the city name, price, and index. The visualization uses D3.js v7 with SVG rendering and animations triggered through mouse events. The data is loaded from a CSV file, and the chart includes axis labels, a title, and blue-colored axis annotations. The code specifically employs `d3.scaleLinear`, `d3.axisLeft`, `d3.axisBottom`, and `d3.csv` to construct the plot.