Adding and Subtracting Functions – Notes, Graphs, and Practice Activities

Help your students master addition and subtraction of functions with this complete, standards-aligned lesson! This resource provides step-by-step examples, guided notes, and multiple graphing activities to help students develop a deep understanding of how functions combine through addition and subtraction.

Students will:
✅ Practice adding and subtracting named functions using notation.
✅ Learn to find values of functions from graphs when given f(x) and f(#).
✅ Apply their understanding to both algebraic and graphical representations
✅ Complete an extra practice section for review or independent learning
✅ Check their work with a complete answer key

Perfect for Algebra 1 or Functions units, this lesson can be used for:

• Direct instruction
  
• Guided notes or interactive notebooks
  
• Review and remediation
  
• Homework or substitute plans
  

This lesson thoroughly covers addition and subtraction of functions, helping students build confidence and fluency with function operations in multiple representations.

⭐ What’s Included:

• Step-by-step teaching notes
  
• Multiple practice problems and graphs
  
• Extra practice section
  
• Full answer key. This lesson provides ample opportunity to practice addition and subtraction of named functions. It also provides multiple graphs for students to practice finding functions from a graph given f(x) and given f(#). This is contains an extra practice section after teaching the lesson. This resource includes a key.