I have two vectors of equal length downloaded from the internet. They relate to two economic variables, x and y, in 100 countries. How do I get a graph of y as a function of x so I can visualize the relation?
You can try
twoVectors = {{1, 2, 3, 4, 5, 6}, {3, 1, 5, 3, 7, -1}}; ListPlot[Transpose[twoVectors]]
There is a tutorial on "Plotting lists of data": http://reference.wolfram.com/language/tutorial/PlottingListsOfData.html