Which equation represents the rectangular form of r is equal to 4 cosine theta ?
A
open paren x minus 2 close paren squared plus y squared is equal to 4B
open paren x plus 2 close paren squared plus y squared is equal to 0C
open paren x plus 2 close paren squared plus y squared is equal to 4D
open paren x minus 2 close paren squared plus y squared is equal to 0