For the given function, find the indicated function value.
-For $f ( x ) = \sqrt { 4 x - 14 }$, find $f ( - 6 )$
A) Does not exist as a real number
B) $\sqrt { 15 }$
C) $3 \sqrt { 13 }$
D) $2 \sqrt { 7 }$

Question

Quizplus · Accepted Answer

To find $f(-6)$, substitute $x = -6$ into the function: $f(-6) = \sqrt{4(-6) - 14} = \sqrt{-24 - 14} = \sqrt{-38}$. Since the square root of a negative number is not a real number, $f(-6)$ does not exist as a real number.

For the Given Function, Find the Indicated Function Value f(x)=4x−14f ( x ) = \sqrt { 4 x - 14 }f(x)=4x−14​

For the Given Function, Find the Indicated Function Value $f ( x ) = \sqrt { 4 x - 14 }$