Activities

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- Textbook Alignment
Subject Area
- Maths: Precalculus: Other Topics: Matrices, Sequences, and Series
- Maths: Precalculus: Systems of Equations
- Maths: College Algebra: Linear Systems and Matrices
Author

Texas Instruments
Level

9-12
Activity Time

45 Minutes
Device
- TI-Nspire™
- TI-Nspire™ CAS
Software

TI-Nspire™
TI-Nspire™ CAS
TI-Nspire Version

1.7
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Activity Overview

Students will use learn about inverse matrices in the context of encoding/decoding secret messages and then use inverse matrices to solve systems of equations.

Key Steps

On page 1.4, students are given the definition of the inverse of a 2 × 2 matrix, and they are asked to find the inverse of the encoding matrix on page 1.5.

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All Systems Go!

Activity Overview

Key Steps

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