{"version":"1.0","type":"rich","title":"activity6 question 9","description":"This bubble chart maps US cities by population on the x-axis, area on the y-axis, and GDP as bubble size. It uses D3’s `scaleLinear` for axes and bubble scaling, `scaleOrdinal` with `interpolateTurbo` for city colors, and `axisBottom` and `axisLeft` for tick marks. A tooltip displays city name and GDP on hover, while a legend with circles and dashed lines shows GDP values. Data is loaded from a local CSV via `d3.csv`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/26bc06b106cd4be18be7ecacd87f332a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}