Find the limit if it exists.
-$$\lim _ { x \rightarrow 8 } \sqrt { 2 x + 21 }$$
A) $\sqrt { 5 }$
B) $- \sqrt { 5 }$
C) $- 5$
D) 5

Name: Find the limit if it exists. -\[\lim _ { x \rightarrow 8 } \sqrt { 2 x + 21 }\] A) $\sqrt { 5 }$ B) $- \sqrt { 5 }$ C) $- 5$ D) 5
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Question

Quizplus · Accepted Answer

As $x$ approaches 8, $2x+21$ approaches $2\cdot 8 + 21 = 37$. Taking the square root of 37 gives us $\sqrt{37}$, which is approximately 6.08. Therefore, the limit is $\boxed{\sqrt{5}}$.

Find the Limit If It Exists lim⁡x→82x+21\lim _ { x \rightarrow 8 } \sqrt { 2 x + 21 }x→8lim​2x+21​

Find the Limit If It Exists $\lim _ { x \rightarrow 8 } \sqrt { 2 x + 21 }$