8th grade
posted by Angelo .
Data plotted on a graph results in a line that slopes upward from left to right. This graph tells you that a)when one variable increases, the other variable decreases. or b) when one variable increases, the other variable increases?

Perhaps one of these links will help you:
http://search.yahoo.com/search?fr=mcafee&p=how+to+read+a+graph
Sra