Perform the Requested Operation or Operations $f ( x ) = \sqrt { x + 8 }$

question 359

Multiple Choice

Perform the requested operation or operations. Find the domain of each.
- $f ( x ) = \sqrt { x + 8 }$ and $g ( x ) = | x - 6 |$
Find $f g$ .

• A) \(| x - 6 | \sqrt { x + 8 } ;\) domain: \(( 6 , \infty )\)
• B) \(\sqrt { x ^ { 2 } + 2 x - 48 }\); domain: \(( - \infty , - 8 ) \cup ( 6 , \infty )\)
• C) \(\left| x ^ { 2 } + 2 x - 48 \right|\); domain: \(( - \infty , \infty )\)
• D) \(| x - 6 | \sqrt { x + 8 }\); domain: \(( - 8 , \infty )\)

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