SOLUTION: Find the domain and range {{{f(x)=sqrt (x^2-49)}}}

Question 124280This question is from textbook college algebra
: Find the domain and range
This question is from textbook college algebra

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Domain is all x such that f(x) makes sense. Values inside a square root sign must be greater than or equal to 0.

The domain is therefore all x except the range (-7,7) or the domain is
(,] U [,)
The brackets indicate that -7 and 7 belong in the domain.
The range is from [,).
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