By Using L'Hopital's Rule $\frac { 9 } { 20 }$

Multiple Choice

$\text { Evaluate the limit } \lim _ { x \rightarrow 10 } \frac { - 9 ( x - 10 ) } { x ^ { 2 } - 100 } \text { first by using techniques from Chapter } 1 \text { then }$ by using L'Hopital's Rule.

A) $\frac { 9 } { 20 }$
B) $- \frac { 9 } { 100 }$
C) $- \frac { 9 } { 20 }$
D) 0
E) does not exist