Transform each polar equation to an equation in retangular coordinates.
(1) r cos (theta) = 4
(2) s rin (theta) = -2
But what about the other ones you've been shown how to do:
http://www.mathhelpforum.com/math-he...-x-y-form.html
http://www.mathhelpforum.com/math-he...ordinates.html
Have you not learned something from seeing those ones done ......?