You should recognize that this is the equation for a circle with its center at the origin. The form of this equation is . So then, what is the equation for ?

May 7th 2008, 10:24 PM

Chris L T521

Quote:

Originally Posted by ldacoll

Change the equation to rectangular cordinates
r=2

To convert a function from polar to rectangular or vice versa, use the following conversions:

Converting to rectangular, we get:

.

You should recognize this as being a circle centered at the origin with a radius of 2.