1. your in the wrong subject
2. The trend line or line of best fit is used to describe the relationship of data in a scatterplot because it shows a general trend in the data points. A trend line will get you the most accurate predictions you can out of scattered data points.
The kkk is a cult that go out and kill people who treat their family poorly, and they dress in all white with semi-pointy hats
C. Vicksburg the capture of the Mississippi river effectively cut off both ends of the confederacy from each other.
Atlantic railroad line it was first named Marthasville in honor of the then-governor's daughter, nicknamed Terminus for its rail location, and then changed soon after to Atlanta, the feminine of Atlantic as in the railroad)