An investigation of functions is a free, open textbook covering a twoquarter precalculus sequence including trigonometry. In this chapter, youll learn what a rational function is, and youll learn how to sketch the. Find the vertical asymptotes and removable discontinuities of the graph of fxx2. Answers brief answers to oddnumbered exercises in each section including the. Answers included on the same page for most exercises. Verify your answers using a graphing calculator, and describe the behavior of. Premium ebook the premium ebook offers an interactive version of the textbook. Mhr 9780070738850 precalculus 12 solutions chapter 9. A function is a rule that takes certain values as inputs and assigns to each input value exactly. Guide and the solutions manual and doug shaw at the university of northern iowa for.
Precalculus department of mathematics university of washington. Finally, there is an appendix at the end of the text with answers to most of the problems in the. A rational function is a function that can be written as the quotient of two polynomial functions. Algebra 1 mcgraw hill exponentiation quadratic equation. Chapter 3 polynomial and rational functions this chapter now begins with a section on. The first portion of the book is an investigation of functions, exploring the graphical behavior of, interpretation of, and solutions to problems involving linear. Since then, david has contributed to several other open texts. Lakeland community college lorain county community college. We would like to show you a description here but the site wont allow us. Solving applied problems involving rational functions. The xintercept of its graph is at x 2 and it has vertical asymptotes. An investigation of functions 2nd ed david lippman and melonie rasmussen.