This lesson is a continuation of the work from Lesson 9. In this lesson, develop the idea of using a formula to define a function (e.g., the function 𝑓, where 𝑓(𝑥) = 𝑥 2 ), and lead students to fully understand why they can use the equal sign (=) in this way to define a function.
The lesson also includes exercises that build fluency with evaluating functions, identifying the domain and the range based on the definition of an algebraic function, and interpreting functions in context. The definitions and FAQs for teachers below are important to today’s lesson. Start with a definition of polynomial function:
There may be cases when our downloadable resources contain hyperlinks to other websites. These hyperlinks lead to websites published or operated by third parties. UnboundEd and EngageNY are not responsible for the content, availability, or privacy policies of these websites.