This video explains what transformations are, and most useful, it shows you the step-by-step process for performing reflections! A key skill whether you're in geometry, or pre-calc trying to figure out if a function is even or odd based on it being reflectable across the x- or y-axis. Yes!
Images & Preimages In Transformations
Curious what the terms "image" and "preimage" mean in the context of transformations? Here you go.
A quick video explaining what isometry is in transformations. Not too interesting, but it may be on your quiz.
This video covers mapping rules, which are a sort of equation-looking way to write down a transformation or function. Things like: (x,y)-->(2x,-y).
If you do not have an account, you should get one, because it is awesome! You can save a playlist for each test or each chapter, and save your "greatest hits" into a "watch right before the final" list (not that we recommend cramming, but when in Rome...)