Please help!! I have been researching this online for hours with no luck...

Q: What is the scope and scale of a chart or graph?

Since this is not my area of expertise, I searched Google under the key words "chart graph scope scale" to get these possible sources:

http://www.google.com/search?client=safari&rls=en&q=chart+graph+scope+scale&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.