1.	The roots of  x2 + 4x + 7 are________.
		A.	real and imaginary	B.	real and irrational
		C.	real and rational	D.	imaginary
		Hint
	2.	Solve  x2 + 7x + 8 = 0.
		A.		B.
		C.		D.
		Hint
	3.	Suppose a ball is thrown straight up at a speed of 50 feet per second. The time in seconds that it takes for the ball to hit the ground can be found by solving the equation 5 + 50t - 16t2 = 0. Approximately how long does it take for the ball to hit the ground?
		A.	0.1 s	B.	-0.1 s
		C.	3.2 s	D.	4.8 s
		Hint
	4.	Solve x2 + 14x + 49 = 0 by using the quadratic formula.
		A.	6, 16	B.	7, –18
		C.	3, 8	D.	–3, –8
		Hint
	5.	If a perfect square is equal to a constant, what is the best method to solve the quadratic equation?
		A.	Completing the Square	B.	Factoring
		C.	Quadratic Formula	D.	Square Root Property
		Hint