1.	Which statement is true about the graph shown below?
		A.	The range is {-3, -2, 0, 1}.	B.	The relation is not a function.
		C.	The relation is a function.	D.	The domain is {-3, 2, 4}.
		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.
		C.	x = 4	D.	x = y2 - 1
		Hint
	4.	In a science experiment, students hung a cup from a spring and measured the length of the spring when candies were added to it. Their data are shown in the table below. Which statement is true?
		A.	The relation is not a function because only a line can be a function.
		B.	The relation is a function because the range values increase.
		C.	The relation is a function because for each x value, there is exactly one y value.
		D.	The relation is not a function because there are two y values for some x values.
		Hint
	5.	Is the relation shown in the graph a function? Why or why not?
		A.	Yes, the relation contains very few ordered pairs.
		B.	No, the relation contains the ordered pairs (3, -1) and (3, 2).
		C.	No, the relation contains the ordered pairs (0, -1) and (3, -1).
		D.	Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line.
		Hint