1.	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.	w = 50 – w	B.
		C.	l + w = 50	D.	lw = 50
		Hint
	2.	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.	lw = 50	B.
		C.	l = 50 – w	D.	l + w = 50
		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.	Find the x-intercepts of the graph of f(x) = –x2 + 4x + 12.
		A.	2, 16	B.	–2, 6
		C.	–2, 16	D.	–2, –6
		Hint