1.	What are the second differences in the y-values?
		A.	1	B.	0
		C.	–1	D.	2
		Hint
	2.	What is true of the second differences for the equation x2 – 6x + 12?
		A.	they decrease by 1
		B.	they increase by 1
		C.	they increase by 12
		D.	they are constant
		Hint
	3.	What type of relationship does the equation have if its first differences are constant?
		A.	linear	B.	quadratic
		C.	cubic	D.	constant
		Hint
	4.	What type of relationship does the equation have if its second differences are constant?
		A.	quadratic	B.	linear
		C.	constant	D.	cubic
		Hint
	5.	Find the values for m and n which the conjecture (m – n)2 = m2 – n2 is false.
		A.	m = 1, n = 1	B.	m = 1, n = 0
		C.	m = 1, n = 2	D.	m = –2, n = 0
		Hint