A Particle Moves Along the Curve $y = \frac { 1 } { x }$

A particle moves along the curve $y = \frac { 1 } { x }$ . If x increases at a rate 8 units per minute, at what rate is y changing when $x = 2$ ?

A) $2 \text { unit } / \min$

B) $\frac { 1 } { 2 } \text { unit } / \mathrm { min }$
C) $4 \text { unit } / \min$
D) $\frac { 1 } { 4 } \text { unit } / \mathrm { min }$
E) $- 2 \text { unit } / \min$
F) $- \frac { 1 } { 2 } \text { unit } / \mathrm { min }$

G) $- 4 \text { unit } / \min$

H) $- \frac { 1 } { 4 } \text { unit } / \mathrm { min }$