1.	A relation in which each member of the domain is paired with exactly one member of the range is called a(n)_______.
		A.	ordered relation	B.	equivalent relation
		C.	equivalent equation	D.	function
		Hint
	2.	If any vertical line passes through no more than one point of the graph of a relation, then the relation is a(n)_______.
		A.	straight line	B.	function
		C.	domain relation	D.	equivalent relation
		Hint
	3.	Which graph does not represent a function?
		A.		B.
		C.		D.
		Hint
	4.	If f(x) = -5x + 8, find f(-1).
		A.	2	B.	3
		C.	13	D.	40
		Hint
	5.	In physics the equation F = ma means ''force equals mass times acceleration.'' The acceleration of a freely falling object is 9.8 m/s2. Use the function F(m) = 9.8m to find the force in Newtons (N) of a freely falling object with a mass of 14 g.
		A.	1.43 N	B.	137.2 N
		C.	23.8 N	D.	8.2 N
		Hint