The polar equation is .
Convert the polar equation to a rectangular equation.
.
is a horizontal line.
Thus, Option is correct choice.
The correct choice is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9fe8e8ab1b7f483d36debdf77c44420d.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c3f40df3b6ee26c4ed5b179d6afd8b20.png\")
. ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c3f40df3b6ee26c4ed5b179d6afd8b20.png\")
is a horizontal line. ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=86ad69b3e3d860c80c52dca177f689c0.png\")
is correct choice.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=86ad69b3e3d860c80c52dca177f689c0.png\")
.