Algebra 2 – Inverse Matrices to Encrypt and Decrypt Messages

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25 80 12 3 5! With the appropriate matrix understanding, you’d know that I just said “Hello!” Yay Math in Studio presents how to use inverse matrices to encrypt and decrypt messages. This is a fascinating topic, and once you understand how it works, it’s not so bad. In this video, we walk you through the process of setting up a message, encrypting it with what’s called an “encoding matrix,” then use the inverse of that matrix to decrypt. Then we round out the lesson with the same tasks on the TI-84 graphing calculator. Enjoy this peek into the world of code breaking, YAY MATH!

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