Use a CAS to Plot the Function near the Point $\lim _ { x \rightarrow 0 } \frac { \sqrt { 36 + x } - \sqrt { 36 - x } } { x }$

Multiple Choice

Use a CAS to plot the function near the point x0 being approached. From your plot guess the value of the limit.
- $\lim _ { x \rightarrow 0 } \frac { \sqrt { 36 + x } - \sqrt { 36 - x } } { x }$

A) 6
B) 0
C) $\frac { 1 } { 12 }$
D) $\frac { 1 } { 6 }$