In this lesson, you learned how to:

• Use function notation to express functions that have specific inputs and outputs.
• Explain what function notation is and why it exists.
• Explain a statement written in function notation in terms of a situation.

Here are the activities that helped you reach those goals:

• 4.2.1: Interpreting Graphs to Answer Questions
  • In this activity, you used graphs to answer questions and also interpreted points on graphs to answer questions.
• 4.2.2: Interpreting Statements Written in Function Notation
  • In this activity, you used function notation to represent different situations. You identified the inputs for the functions as they changed.
  • 4.2.2: Self Check
  • 4.2.2: Additional Resources
• 4.2.3: Finding a Unique Output for Each Input
  • In this activity, you identified inputs and outputs given rules. You determined if the inputs and outputs created a function.
  • 4.2.3: Self Check
  • 4.2.3: Additional Resources
• 4.2.4: Understanding Function Notation Using Application Problems
  • In this activity, you read function notation in terms of the situation. You also wrote function notation to represent the given situation.

After these activities, you completed the following practice:

• 4.2.5: Practice