Review 4/3

Today I decided to review parametric equations. To help me while I reviewed my notes I additionally watched a Khan Academy video helping explain what parametric equations actually are. 

https://www.khanacademy.org/math/precalculus/parametric_equations/parametric/v/parametric-equations-1

In the video it explains that both x and y are functions of time. Through the use of parametric equations we can determine the direction and path of an object. Additionally you can also determine a third parameter, Z, on a three-dimensional plane. You can also determine the slope of a tangent line, velocity functions, acceleration functions, and speed. 

I also google searched problems with their solutions to help me understand and practice. http://tutorial.math.lamar.edu/problems/calcii/parametriceqn.aspx