Education Technology

Exploring Domain and Range

Subject Area
Math: Algebra I: Functions and Relations
Level
9-12
Activity Time
50 Minutes
TI Calculator
TI-Nspire CX series
TI-Nspire™ CX CAS/CX II CAS
TI-Nspire™ Apps for iPad®
TI-Nspire Version
3.6
Resource Types
Lessons
Format
TNS

Exploring Domain and Range

Activity Overview

Explore visual representations of relations to determine their domain and range.

Objectives

  • Students will identify the domain and range of a relation from the graph.
  • Students will write symbolic expressions to describe the domain and range of a function.
  • Students will recognize that different functions can have the same domain or the same range.

Vocabulary

  • domain
  • range

About the Lesson

This lesson involves identifying a set of x-values in both symbols and words, identifying the set of x-values used in generating the function as the domain of the function, and identifying the set of y-values used in generating the function as the range of the function. As a result, students will:

  • Interpret graphs of functions to identify the domain and the range.
  • Describe sets of x-values and y-values in both symbols and words.

Subject Area
Math: Algebra I: Functions and Relations
Level
9-12
Activity Time
50 Minutes
TI Calculator
TI-Nspire CX series
TI-Nspire™ CX CAS/CX II CAS
TI-Nspire™ Apps for iPad®
TI-Nspire Version
3.6
Resource Types
Lessons
Format
TNS
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