For the given equation, find an equivalent equation in rectangular coordinates and graph. 2 r= 1- cose Choose an equivalent equation below. O A. y? = 4 O B. +y? =x-2 OC. 2 y=1 OD. y? - 4 X= - cOS X 4 Choose the correct graph below. O A. OC. -8,5 8,5 -8,5 8,5 -8.5 8,5 B. For the following rectangular equation, give the equivalent polar equation and sketch its graph. x2 +y? = 81 The polar form of the rectangular equation is (Use a comma to separate answers as needed. Type each answer only once.) Graph the polar equation. Choose the correct graph below. O A. . . OD. 12- 20- 12- 20- -12 -20 20 -12 -20 20 -12- -12-