1. We chose linear trendline because it mostly resembles the line and also because its steady increase. • 5. The slope is 1203.5, the y intercept is 17,798, and the x intercept is 14.8.
6. After plugging in 30 for x I got 53,903 which means my answer does seem possible because it is increase by about 1000 every year. If I was an analyst I would still use the plug in method. • 7. If congress was to lower the drinking age to 18 the y intercept would increase, but the graph would look about the same.