Give an appropriate answer.
-Let $\lim _ { x \rightarrow -9 } f ( x ) = 49$. Find $\lim _ { x \rightarrow -9 } \sqrt { f ( x ) }$.
A) 49
B) $- 9$
C) 7
D) $2.6458$

Question

Quizplus · Accepted Answer

We know that $\lim _{x\rightarrow -9} f(x) =49$. Taking the square root of both sides, we get $\sqrt{\lim _{x\rightarrow -9}f(x)} =\sqrt{49}=7$. Therefore, $\lim _{x\rightarrow -9}\sqrt{f(x)}=\boxed{\mathrm{(C)}\ 7}$.

Give an Appropriate Answer lim⁡x→−9f(x)=49\lim _ { x \rightarrow -9 } f ( x ) = 49limx→−9​f(x)=49

Give an Appropriate Answer $\lim _ { x \rightarrow -9 } f ( x ) = 49$