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What is a Function?
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CC BY-NC
What is a Function?
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This seminar will allow you to identify the domain and range of a relation, and then use the relationships that exist in order to determine whether or not the relation is a function. You will define functions, and you will learn how to identify and use functional notation. You will gain an understanding of the concept of a functional relationship which will allow you in the future to study specific functions in depth.StandardsCC.2.2.HS.C.1 - Use the concept and notation of functions to interpret and apply them in terms of their context.

Subject:
Algebra
Mathematics
Material Type:
Lesson Plan
Author:
Bonnie Waltz
Deanna Mayers
Tracy Rains
Date Added:
10/15/2017
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The restaurant
Conditional Remix & Share Permitted
CC BY-NC-SA
The restaurant
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The purpose of this task is to get students thinking about the domain and range of a function representing a particular context. Often when a function is being used to model a context, the expression for the function has a larger domain and range than is reasonable for the context. Asking students to focus on a function for which there is no formula focuses attention on the context itself. Note that in many contexts, there are multiple plausible sets that one could choose for the domain (and/or the range), and the solution to the current task provides such an example.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Date Added:
05/02/2023
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