A Comet Follows the Hyperbolic Path Described By $\frac { x ^ { 2 } } { 10 } - \frac { y ^ { 2 } } { 2 } = 1$

Multiple Choice

A comet follows the hyperbolic path described by $\frac { x ^ { 2 } } { 10 } - \frac { y ^ { 2 } } { 2 } = 1$ , where $x$ and $y$ are in millions of miles. If the sun is the focus of the path, how close to the sun is the vertex of the path?

A) 3.7 million mi
B) 0.3 million mi
C) 3.2 million mi
D) 12 million mi