1.	Find the radius of the circle with equation (x - 4)2 + (y - 7)2 = 36.
		A.	4	B.	6
		C.	7	D.	36
		Hint
	2.	Which is an equation of the circle with center at P(-2, 5) and radius 2?
		A.	(x + 2)2 + (y - 5)2 = 4	B.	(x + 2)2 + (y - 5)2 = 2
		C.	(x - 2)2 + (y + 5)2 = 4	D.	(x - 2)2 + (y + 5)2 = 2
		Hint
	3.	Find an equation of the circle that has a diameter with endpoints at (6, 10) and (-2, 4).
		A.	(x - 4)2 + (y - 3)2 = 53	B.	(x - 6)2 + (y - 10)2 = 100
		C.	(x - 2)2 + (y - 7)2 = 25	D.	(x + 2)2 + (y - 4)2 = 100
		Hint
	4.	Find the diameter of the circle with equation (x + 8) 2 + (y - 9) 2 = 121.
		A.	22	B.	121
		C.	11	D.	17
		Hint
	5.	Which is an equation of the circle with center at (11, -19) and diameter 12?
		A.	(x + 11) 2 + (y - 19) 2 = 36
		B.	(x + 11) 2 + (y - 19) 2.= 144
		C.	(x - 11) 2 + (y + 19) 2 = 36
		D.	(x - 11) 2 + (y + 19) 2 = 144
		Hint