1.	Which description does not fit the graph of x = -4?
		A.	The value of the x-coordinate is always -4.	B.	The line passes through the point at (0, 0).
		C.	The graph is a vertical line.	D.	The graph is parallel to the y-axis.
		Hint
	2.	Which equation is not a linear equation?
		A.	y = -4	B.	xy + 2 = y
		C.	3x = 4y + x	D.	x= 0
		Hint
	3.	Which equation describes the graph?
		A.	y = -2	B.	x = 2
		C.	y = 2	D.	x = -2
		Hint
	4.	Which equation describes the graph?
		A.	y = -2x	B.	y = 2x
		C.	y = -x	D.	y = x
		Hint
	5.	Which is true of the equation y = cx where c is a constant?
		A.	The graph will be increasing.	B.	The graph will always cross the x-axis at exactly one point.
		C.	The graph will be decreasing.	D.	The graph passes through the origin.
		Hint