Write the Statement as a Power Function Equation $h = k r ^ { 2 }$

Multiple Choice

Write the statement as a power function equation. Use k as the constant of variation.
-The height h of a cone with a fixed volume varies inversely as the square of its radius r.

A) $h = k r ^ { 2 }$
B) $\mathrm { r } ^ { 2 } = \mathrm { kh }$
C) $h = \frac { r ^ { 2 } } { k }$
D) $h = \frac { k } { r ^ { 2 } }$