Students who submit math questions to our free math tutors, know that algebra.com asks them for information on their textbook.
Why? This page explains it.
I want to store questions and answers by textbook. That way, future students who visit algebra.com, will be able to look up solutions for their textbook. It will help them to find help on their study materials. It will also help reuse the extremely valuable work that our tutors do, freeing them to work on new stuff rather than redo what has already been done.
No one should get something for nothing, so, students who ask math questions can as well do a little effort and post information on what textbook their problem comes from.
Practically speaking, those who identify their textbook and chapter will be given priority access to the "queue" of problems and will be more likely to have their problems answered. To make your life easy, algebra.com will remember your textbook information in your "cookie", for up to a week. So, you only have to type it once and it will be good for several days.