Education Technology

Finding Extraneous Solutions

Subject Area
Math: Precalculus: Radical Functions
Math: Precalculus: Rational Functions
Level
9-12
Activity Time
45 Minutes
TI Calculator
TI-84 series
Resource Types
Lessons

Finding Extraneous Solutions

Activity Overview

In this activity, students will graphically solve a radical equation. They are given each step of solving the equation. For each step students are to graph each side of the equation as a separate function and find the intersection. Students will determine in which step the extraneous solution appears.

Subject Area
Math: Precalculus: Radical Functions
Math: Precalculus: Rational Functions
Level
9-12
Activity Time
45 Minutes
TI Calculator
TI-84 series
Resource Types
Lessons
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