Using Function Notation

Grade 845 min

Learning Objective

I can interpret and write statements using function notation to represent specific inputs and outputs in a given situation.

Lesson Flow

Watch Video

5 min

How to interpret an expression with function notation | Functions | Algebra I | Khan Academy

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Practice

14 min

7 questions • Short answer

Exit Ticket

5 min

Let C(t) represent the number of customers in a store t hours after it opens. What does the statement C(4) = 25 mean? Suppose P(a) represents the profit (in dollars) a company makes when selling 'a' amount of items. Explain the meaning of P(50) = 1000 in the context of this function. A function H(x) gives the height of a plant (in centimeters) x weeks after it was planted. Write a statement using function notation that represents "The plant was 10 cm tall after 3 weeks."

Teacher Guide

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  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts