1.	Approximate the real zero of f(x) = x3 + x + 1 to the nearest tenth.
		A.	-0.7	B.	0.3
		C.	-1.0	D.	-1.3
		Hint
	2.	Approximate the real zero of g(x) = x5 - x2 - 1 to the nearest tenth.
		A.	0.9	B.	1.2
		C.	1.0	D.	1.1
		Hint
	3.	Approximate the real zero of h(x) = 2x4 - 3x2 + x + 1 to the nearest tenth.
		A.	-1.3, -0.5	B.	-1.5, 0.9
		C.	-0.3	D.	1.6
		Hint
	4.	Find consecutive values of x between which each real zero of the function is located.
		A.	no solution	B.	–5 and –4
		C.	3 and 4	D.	–3 and –4
		Hint
	5.	Find consecutive values of x between which each real zero of the function is located.
		A.	0 and 1, 1 and 2	B.	–1 and 0, 0 and 1, and 1 and 2
		C.	–1 and 0, 0 and 1	D.	–1 and 0, 1 and 2
		Hint