Let $f ( x ) = \frac { 5 - \sqrt { 2 x + 5 } } { x - 10 }$

Multiple Choice

Let $f ( x ) = \frac { 5 - \sqrt { 2 x + 5 } } { x - 10 }$ Which of the following is true for $\lim _ { x \rightarrow 10 } f ( x )$ ?

A) $- \frac { 1 } { 10 }$
B) $- \frac { 1 } { 5 }$
C) $\frac { 1 } { 10 }$
D) $\frac { 1 } { 5 }$
E) Does not exist