• Press the MODE key (second row), and use the ARROW keys and the ENTER key to select Par as shown to the right.

• Press the Y= key. Note that you can now enter parametric equations of the form x=f(t) and y=f(t).

• Enter the function:

x1(t)=3*cos(t)
y1(t)=2*sin(t)

• Press ZOOM then 4 to get the graph shown to the right.