1.	Consider the function f(x) = 2x. Find the domain and range.
		A.	domain: all real numbers range: all real numbers
		B.	domain: all real numbers range: all real numbers less than zero
		C.	domain:all real numbers greater than zero range: all real numbers except zero
		D.	domain: all real numbers greater than zero range: all real numbers greater than zero
		Hint
	2.	Find the range of a parabola if the vertex is (–5, 3) and the parabola opens upward.
		A.	range: f (x) –5
		B.	range: f (x) –5
		C.	range: f(x) 3
		D.	range: f (x) 3
		Hint
	3.	Find the x-intercepts of the graph of f(x) = x2 – 2x – 3.
		A.	–1, 4	B.	–1, 3
		C.	1, –4	D.	1, –3
		Hint
	4.	How many solutions does the equation have?x2 – 6x + 8 = 2x – 3
		A.	3	B.	0
		C.	1	D.	2
		Hint
	5.	Approximate the solution to x3 – 4x – 1 = x + 4.
		A.	x = 2.6	B.	x = 0
		C.	x = 5.2	D.	x = 1.3
		Hint