Write an Equation That Expresses the Relationship $x$ Varies Inversely As $y ^ { 2 }$

Multiple Choice

Write an equation that expresses the relationship. Use k as the constant of variation.
- $x$ varies inversely as $y ^ { 2 }$ , and $x = 3$ when $y = 12$ . Find $x$ when $y = 2$ .

A) $x = 108$
B) $x = 54$
C) $x = 12$
D) $x = 6$ Solve.