1.	The graph of a linear function is _______.
		A.	a straight line	B.	None of these is correct
		C.	a curved line	D.	a horizontal line only
		Hint
	2.	Which characteristic describes a graph that is linear and has direct variation.
		A.	The equation has the form y = mx.
		B.	The equation has the form y = mx + b.
		C.	The graph does not pass through (0, 0).
		D.	Variables x and y are not proportional.
		Hint
	3.	Find the equation that has direct variation.
		A.	y = 5x + 1.3	B.	y = 4x
		C.	y = 0.8x + 9	D.	y = –3x – 1
		Hint
	4.	Find the equation that contains a decreasing linear relationship.
		A.	y = 4x – 3	B.	y = 12+ 2x
		C.	y = 10 + x	D.	y = 5 – 6x
		Hint
	5.	Find the table that represents a graph with direct variation.
		A.
		B.
		C.
		D.
		Hint