Algebra and trigonometry

Sobel and Lerner aim to provide teachers with a teachable text and students with a readable one that will properly prepare them for future courses, particularly calculus. The text is designed specifically to ease the transition to calculus and directly involve graphing calculators. The book features: special material devoted to directly supporting topics in precalculus without covering the actual topics themselves; over 500 display examples that demonstrate and support mathematical developments; and optional graphing calculator sections with exercises, sometimes to verify what has been done by hand, other times to produce graphs of more complicated equations, observations and analysis.