Parametric Equations

Parametric equations express the coordinates of the points of a curve as functions of a parameter. To graph a parametric equation you make a table of values according to the set parameters and plug those into x and y. After you plug them in you can use those points to graph the parametric equation. Another part to parametric equations is eliminating the parameter which is usually t. To do this you can use either substitution or elimination to solve it like a system of equations. Here is an example of a parametric equation.