If Y Varies Inversely as X, Find the Inverse Variation $y = 90 \text { when } x = 6$

Multiple Choice

If y varies inversely as x, find the inverse variation equation for the situation.
- $y = 90 \text { when } x = 6$

A) $\mathrm { y } = \frac { 540 } { \mathrm { x } }$
B) $y = \frac { x } { 540 }$
C) $y = 15 x$
D) $y = \frac { 1 } { 540 x }$