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find the domain of f(x)

f(x) =5/sqrt(x+8)

asked Sep 5, 2018 in ALGEBRA 2 by mathgirl Apprentice
reshown Sep 5, 2018 by bradely

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1 Answer

Given, f(x) =5/sqrt(x+8)

Domain is all x-values such that f(x) is defined.

Square root of a negative number is not defined and the denominator should not be zero.

Hence,

x+8 > 0

x + 8 > 0

x > -8

Domain : ( -8, infinity )

Answer :

Domain : ( -8, infinity ).

answered Sep 6, 2018 by homeworkhelp Mentor
edited Sep 8, 2018 by bradely

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