1.	Find the equation of a circle that has a diameter of 8 units, centered at C(-3, -7).
		A.	(x + 3)2 + (y + 7)2 = 64	B.	(x + 3)2 + (y + 7)2 = 16
		C.	(x - 3)2 + (y - 7)2 = 8	D.	(x - 3)2 + (y - 7)2 = 16
		Hint
	2.	Graph the equation (x - 2)2 + (y + 3)2 = 4 on a coordinate plane.
		A.		B.
		C.		D.
		Hint
	3.	Write the equation of a circle with center (-2, 4) and radius of 6 units.
		A.	(x + 2)2 + (y - 4)2 = 36
		B.	(x + 2)2 - (y - 4)2 = 36
		C.	(x + 2)2 - (y + 4)2 = 36
		D.	(x - 2)2 + (y - 4)2 = 36
		Hint
	4.	Write the equation of a circle with center (4, -6) and diameter of 18 units.
		A.	(x - 4)2 + (y + 6)2 = 81
		B.	(x - 4)2 + (y - 6)2 = 81
		C.	(x - 4)2 - (y - 6)2 = 324
		D.	(x - 4)2 + (y + 6)2 = 324
		Hint
	5.	What are the coordinates of the center of a circle defined by the equation (x + 7)2 + (y - 8)2 = 16?
		A.	(-7, -8)	B.	(7, 8)
		C.	(-7, 8)	D.	(7, -8)
		Hint