In this video we'll talk about what the heck parametric equations are, how to graph them, and do a quick projectile problem since projectile equations are a "classic" parametric equation situation.
Converting Parametric Equations to Rectangular
In this video we'll go through the surprisingly simple process of switching between the two types of equations by "eliminating the parameter". We can do this in basic polynomial situations, but also when complex trig functions and identities are involved.
Converting Rectangular Equations to Parametric
Sort of a reverse of the problems in the previous video, this is actually easier than you'd think. When all else fails, just set x=t at the start of the problem and you'll have smooth sailing.
Parametric Equations of Conic Sections: Circles, Ellipses & Hyperbolas
Many teachers make you know circles. A few do ellipses. Almost none do hyperbolas. But the three equations are so similar that I thought I'd throw them all into the same video so you can get them easier by seeing how they're all the same. Gonna have to memorize these!
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...)