Find $a$ , Such That the Function $f ( x ) = 4 x + \sqrt { a - x ^ { 2 } }$

question 10

Multiple Choice

Find $a$ , such that the function $f ( x ) = 4 x + \sqrt { a - x ^ { 2 } }$ has the domain $( - 4,4 )$ .

• A) \(a = - 16\)
• B) \(a = \sqrt { 4 }\)
• C) \(a = - \sqrt { 4 }\)
• D) \(a = 16\)
• E) \(a = 4\)

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