1.	Choose the graph that is not a function.
		A.		B.
		C.		D.
		Hint
	2.	Choose the relation that is a function.
		A.		B.
		C.		D.
		Hint
	3.	Determine which equation represents a function.
		A.	y = -2x + 1	B.	x = 4
		C.		D.	x = y2 - 1
		Hint
	4.	Find if f(x) = -12x +
		A.	-8	B.	0
		C.	-9	D.	1
		Hint
	5.	Find f(x – 7) if f(x) = -4x – 10.
		A.	-4x + 18	B.	-4x – 17
		C.	4x – 38	D.	4x + 3
		Hint