Evaluate the radical function at the given value of the variable.
-$f ( x ) = \sqrt { x + 7 } + \sqrt { x } ;$ find $f ( 9 )$
A) 7
B) 2
C) 5
D) 4

Name: Evaluate the radical function at the given value of the variable. -$f ( x ) = \sqrt { x + 7 } + \sqrt { x } ;$ find $f ( 9 )$ A) 7 B) 2 C) 5 D) 4
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Question

Quizplus · Accepted Answer

To find $f(9)$, substitute $x = 9$ into the function: $f(9) = \sqrt{9 + 7} + \sqrt{9} = \sqrt{16} + \sqrt{9} = 4 + 3 = 7$.

Evaluate the Radical Function at the Given Value of the Variable