If Y Varies Inversely as X, Find the Inverse Variation $y = 7$

Multiple Choice

If y varies inversely as x, find the inverse variation equation for the situation.
- $y = 7$ when $x = 3$

A) $y = \frac { 7 } { 3 } x$
B) $y = \frac { 1 } { 21 x }$
C) $y = \frac { x } { 21 }$
D) $y = \frac { 21 } { x }$