Parametric equations

Parametric equations are basically normal x and y equations with the addition of a third variable, t. With this thrid variable, one can learn another useful item that corresponds eith the change of x and y such as time. To eliminate the parameter, first start with the parametric. Then, solve for the variable t in one of the equations given. After that, substitute the value of t that was found into the second equation. Lastly, move around values to obtain the rectangular equation, or normal x and y equation. To eliminate the parameter, you can also create a graph by creating a table of values that contain the values of all three variables.