As the first text developed specifically for students who may not proceed to upper level math, this best-seller provides just what its users need: a solid understanding of algebra through the use of modeling techniques and real-data applications. Designed to help students develop conceptual understanding, problem-solving skills, and mathematical reasoning abilities, the text's clear explanations and outstanding graphics present mathematics as an intriguing and important modeling language for real-life problem solving. A text-specific web site offers instructor and student resources and online tutorials. The Programs appendix and the Career Interviews sections of the previous edition have been moved online. Real-Data Application examples use relevant, current data. Discussing the Concept sections provide options for individual and collaborative work or class discussion.