Transform the following polar equation into an equation in rectangular coordinates:?
r=16

Choices:

A. (x-4)^2+y^2=4

B.x=4

C. xy=16

D. x^2+y^2=4

I could really use help! thanks :)

Question

Transform the following polar equation into an equation in rectangular coordinates:?
r=16

Choices:

A. (x-4)^2+y^2=4

B.x=4

C. xy=16

D. x^2+y^2=4

I could really use help! thanks :)

anonymous · Answer

Sounds like a circle

amistre64 · Answer

r = 16 is a polar equation where the radius is always a distance of 16 from the center of a circular type thingamabob

amistre64 · Answer

b and c are out; and there is no indication that we moved from origin so my guess is d

anonymous · Answer

thank you!

amistre64 · Answer

|dw:1314125735108:dw|

amistre64 · Answer

also; 

r^2 = x^2 + y^2

which really almost looks like d

amistre64 · Answer

http://www.wolframalpha.com/input/?i=polar+r%3D16 which should amount to: x^2 + y^2 = 256