1.	Consider a function machine that gives the positive square root of the input. If the input is , what is the output?
		A.		B.
		C.		D.
		Hint
	2.	Triple the number, subtract 5, and square the result.Which function describes the rule?
		A.		B.	y = (3x – 5) 2
		C.	y = 3(x – 5) 2	D.	y = 3x2 – 5
		Hint
	3.	Find the domain of the function.
		A.	all real numbers except –1
		B.	all real numbers
		C.	all real numbers except 0
		D.	all real numbers except 1
		Hint
	4.	Hector needs to build a rectangular pen for his dog. He decides to use an area of 50 m2 in his backyard for the pen. Using l for the length and w for the width, express the area in terms of the two variables.
		A.		B.	lw = 50
		C.	l + w = 50	D.	w = 50 – w
		Hint
	5.	Hector needs to build a rectangular pen for his dog. He decides to use an area of 50 m2 in his backyard for the pen. Using w for the width, find a function f(w) that represents the perimeter of the fence in terms of w.
		A.	l = 50 – w	B.	l + w = 50
		C.	lw = 50	D.
		Hint