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Determine Domain from an Algebraic Rule
Grade Level
GRE
QR.140 Determine Domain from an Algebraic Rule
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What is the domain of f(x) = sqrt((x - 1)(x - 4))/(x
2
- 25)?
A
[1, 4] except x = 5
B
(-infinity, -5) U (-5, 1] U [4, 5) U (5, infinity)
C
(-infinity, 1] U [4, infinity)
D
all real numbers except x = -5 and x = 5
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