The textbook for MAT 1375 Precalculus is:
Precalculus, Third Edition (3.0), by Thomas Tradler and Holly Carley.
DOWNLOAD the third edition of the textbook here
The course outline for the third edition can be found here.
There are slides that follow the lessons from the third edition here.
A printed version of the textbook (via print on demand) is available from www.lulu.com.