Prompt for April 19

Linear Algebra: How do matrices work? Do they work on coordinates?? Let's find out!

Nicky Case (creator of a ton of cool demos and the Coming Out Simulator) has a great interactive demo for transformation matrices.

Refer back to our notes on linear regression.

Simple Linear Regression:
Transforming a Plot
X Y X1 X2 Y1 Y2 = X' Y' Rotation: 0 Scale: 0

Rotate:

Scale:

Code for today: