Answer: y=2x+4
plug into the formula y-y1=m(x-x1)
This is a personal question, which means that only you can answer it. However, I can give some examples that might help guide your work.
An example of a primary source that you might encounter in your own life is that of a news article. As this article is likely to be written by a reporter witnessing the events, it can be considered a primary source. On the other hand, an example of a secondary source would be a non-fiction book that talks about a historical event. This is because such a book would give a second-hand account of an event based on historical information.
The name of this message was the "Zimmermann telegram." This is because this message was sent by a German official named Arthur Zimmermann to promise Mexico that if they Mexico joined Germany in the war, Germany would regain its lost territory that the United States had previously obtained.
