I need help because I cannot cite the pages in the textbook I bought because it states the location number at the bottom of the page but does not correspond with the index.
First, not all publishers include page numbers. If the book in question does not have page numbers, there are accepted methods for citing e-books.
If the book does include page numbers, you can tap the bottom-left corner of your Kindle's screen to cycle through the display options. One of the options will be page numbers, if available.
and google citing ebooks for the approved methods of citing them. Every style guide out there tells how to cite digital books