1.	Which describes the locus of all points in a coordinate plane that are 4 units from the x-axis and 6 units from the y-axis?
		A.	four points whose coordinates are
		B.	two points whose coordinates are (4, 6) and (-4, 6)
		C.	four points whose coordinates are
		D.	one point at (6, 4)
		Hint
	2.	Which describes the locus of points in space that satisfy the equation 2x - y = 3?
		A.	line	B.	sphere
		C.	plane	D.	point
		Hint
	3.	Find the locus of points in the coordinate plane that satisfy the equations y = (x + 2)2 and y = -x - 2.
		A.	(1, 9), (2, -4)	B.	(-3, 1)
		C.	(-2, 0), (-3, 1)	D.	no points
		Hint
	4.	Find the locus of points in the coordinate plane that satisfy the equations (x + 1)2 + (y - 3)2 = 72 and y = -x + 2.
		A.	(-7, 9), (5, -3)	B.	(-4, -5), (4, 10)
		C.	(6, -4), (8, -6)	D.	no points
		Hint
	5.	Find the locus of points in the coordinate plane that satisfy the equations y = 20 - x2 and y = x2.
		A.	(-3.2, 10) and (3.2, 10)
		B.	no points of intersection
		C.	(6, 8) and (-4, -8)
		D.	(2, 0) and (-3, -10)
		Hint