{"version":"1.0","type":"rich","title":"Assignment #7 Multiple Line Chart ","description":"This example visualizes five automobile performance attributes—economy in miles per gallon, cylinder count, horsepower, weight, and 0-to-60 mph time—as a set of colored polylines plotted against car models from a CSV file. The chart reveals each model’s relative values across these disparate scales on a single axis. The code uses D3 v7 to load the CSV, define point and linear scales, draw the SVG paths with `d3.line`, and render axes with `d3.axisBottom` and `d3.axisLeft`. Each attribute uses a fixed stroke color, and a legend is constructed via `d3.scaleOrdinal`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3067fe9271bd4ae6974d4ebe751fe33c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}