{"version":"1.0","type":"rich","title":"act6-question9","description":"A bubble chart visualizes advertising data, showing TV and Radio budgets on the x- and y-axes while the area of each circle encodes Sales figures. The visualization employs D3 v7 with `d3.scaleLinear` for axes, `d3.scaleSqrt` for bubble radius, `d3.scaleSequential` with `d3.interpolateBlues` for color encoding, and `d3.axisBottom`/`d3.axisLeft`. Interactive tooltips appear on mouseover, and data loads from a CSV via `d3.csv`. Rendered as SVG with opacity and black stroke styling.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4ca3766543a34097800286199d10b2a5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}