A function f: A → R is defined by the equation f(x) = x2 – 4x + 5 where A = (1, 4). What is the range of the function?

A function f: A → R is defined by the equation f(x) = x2 – 4x + 5

1.	A function f: A → R is defined by the equation f(x) = x2 – 4x + 5 where A = (1, 4). What is the range of the function?
A.	(2, 5)
B.	(1, 5)
C.	[1, 5)
D.	[1, 5]
Answer» D. [1, 5]

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