SOLUTION: f(x)=4x over the square root of x minus 4 find the domain

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Question 453191: f(x)=4x over the square root of x minus 4 find the domain
Answer by lwsshak3(11628) About Me  (Show Source):
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f(x)=4x over the square root of x minus 4 find the domain
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f(x)=4x/√(x-4)
There are two restrictions here: The radican inside the sqrt must be ≥0 and the denominator must ≠0
x-4≥0
x≥4
however x=4 is not allowed because it makes the denominator=0
domain: (4,∞)