More about Matrices

We dove in to matrices today and solved a system of 3 equations in 3 unknowns.
We are getting good at making the bottom left corner into zeros, and now we know how that will help us solve the system.

Once we have reduced our matrix to this point, we can jump back into equations to arrive at the final solution.

Something new this year that I’ve been exploring is the desmos 3D graphing. It is powerful to see that this solution is actually the intersection point of the 3 planes we started with.

here is a link to the desmos graph so you can interact with it and try it out.