A Graphical Approach to Algebra & Trigonometry, 3rd Ed.
This series is the culmination of many years of teaching experience with the graphing calculator. The books were written from the beginning for use with the graphing calculator. Throughout the text, the authors emphasize the power of technology but provide numerous warnings of its limitations: they stress that only through understanding the mathematical concepts can students fully appreciate the power of graphing calculators and use technology appropriately.Additionally, the authors consistently use the same four-step process when introducing the different classes of functions. This allows students to easily make connections between graphs of functions and their associated equations and inequalities.
Hornsby, J., Lial, M. L., & Rockswold, G. K. (2003). A graphical approach to college algebra and trigonometry. (3d ed.). Addison-Wesley.