{"version":"1.0","type":"rich","title":"Fork of Question 4: Multi-Series Chart (Bar + Line)","description":"This fork of Question 4 displays a multi-series bar and line chart comparing average car price and horsepower for ten brands. The visualization reads a CSV file containing car attributes and uses D3 v7 scales and axes with dual y-axes: blue bars represent average price in USD, while a red monotone curve with dots shows average horsepower. The chart animates bar growth and line fading through `transition().duration()`, with gridlines, rotated x-axis labels, axis labels, a title, and a legend generated via D3 selections.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1c2eb7f02ef5476f9159616b7b9b9e45?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}