Say I am given this graph here that I want to replicate on LaTeX. There is no equation given. What is the fastest way of doing it?
I am at beginner level when it comes to Tikz, but I don't mind learning other method too.
Note: this picture is on a pdf file, which is why I can screenshot and post it here. However there are some graphs in the same situation in a hard copy, and I don't want to neglect those as well.
Thanks in advanced!