A Point on the Terminal Side of an Angle θ $( - 3 , - 1 )$

Multiple Choice

A point on the terminal side of an angle θ is given. Find the exact value of the indicated trigonometric function of θ.
- $( - 3 , - 1 )$
Find $\sec \theta$ .

A) $- \frac { \sqrt { 10 } } { 3 }$
B) $- \frac { 3 \sqrt { 5 } } { 5 }$
C) $\frac { \sqrt { 5 } } { 2 }$
D) $- \sqrt { 5 }$