{"version":"1.0","type":"rich","title":"act8_task4","description":"A bubble chart shows the relationship between average horsepower, torque, and highway MPG across 31 car makes. Each circle’s position encodes horsepower and torque on the x- and y-axes, while its radius represents highway MPG and its color distinguishes the manufacturer. Built with D3 v7, the chart uses `d3.scaleLinear` for axes and sizing, `d3.scaleOrdinal` with `d3.interpolateTurbo` for color, and includes an interactive tooltip on mouseover plus a legend for MPG values. Data comes from a local CSV file.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c22e3c88e538459e84ef23431e101017?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}