Precalculus: Concepts Through Functions, A Right Triangle Approach to Trigonometry (4th Edition) offers a comprehensive exploration of precalculus topics, emphasizing a conceptual understanding through functions and a distinctive focus on right triangle trigonometry. This 4th edition (ISBN-13: 9780134686981) builds a solid foundation in algebra and trigonometry, equipping students with the essential skills needed for success in calculus and other advanced mathematics courses. Designed to foster critical thinking and problem-solving abilities, this text is an invaluable resource for students preparing for future STEM endeavors.