Find an Equation of Variation in Which Y Varies Inversely $$y = 0.3 \text {, when } x = 0.4$$

Multiple Choice

Find an equation of variation in which y varies inversely as x and the following is true.
- $$y = 0.3 \text {, when } x = 0.4$$

A) $y = \frac { 0.7 } { x }$
B) $y = \frac { 0.12 } { x }$
C) $y = 0.75 x$
D) $\mathrm { y } = \frac { 0.75 } { \mathrm { x } }$