Chapter 4  An Introduction to Functions 
Essential Questions 1. How can you represent and describe functions? 2. Can functions describe realworld situations? 
Big Ideas

Common Core Domains 1. Quantities (N.Q) 2. Seeing Structure in Expressions (A.SSE) 3. Creating Equations (A.CED) 4. Reasoning with Equations and Inequalities (A.REI) 5. Interpreting Functions (F.IF) 6. Building Functions (F.BF) 7. Linear, Quadratic, and Exponential Models (F.LE) 