1.	Write the rectangular equation x2 + y2 = 9 in polar form.
		A.	r = 3 or r = -3	B.	r = 18 or r = -18
		C.	r = 6 or r = -6	D.	r = 9 or r = -9
		Hint
	2.	Find the rectangular coordinates of the point R.
		A.		B.
		C.		D.
		Hint
	3.	Find the rectangular coordinates of the point K(4, 276°).
		A.	(0.42, -3.98)	B.	(-38.06, -38.06)
		C.	(-2.38, -38.06)	D.	(-3.98, 0.42)
		Hint
	4.	Write the polar equation r = 5 sin in rectangular form.
		A.		B.	x2 + y2 = 5x
		C.		D.	x2 + y2 = 5y
		Hint
	5.	Write the rectangular equation x2 + (y + 6)2 = 36 in polar form.
		A.	r = 12 sin	B.	r = -6 sin
		C.	r = -12 sin	D.	r = 6 sin
		Hint