1.	Determine which equation represents a function.
		A.	x = y2 - 1	B.
		C.	y = -2x + 1	D.	x = 4
		Hint
	2.	Which function is not linear?
		A.	f(x) = 8	B.	f(x) = 14x + 7
		C.		D.	f(x) = 2x3
		Hint
	3.	What is the x-intercept of the graph below?
		A.	-2	B.	2
		C.	-3	D.	3
		Hint
	4.	Which equation is graphed below?
		A.	3x + y = 6	B.	3x - y = -6
		C.	x + 3y = 6	D.	x - 3y = -6
		Hint
	5.	Given find
		A.	1	B.	–1
		C.	–7	D.	7
		Hint