Write the Statement as a Power Function Equation $h$ Of an Equilateral Triangle Varies Directly as One Side S

Multiple Choice

Write the statement as a power function equation. Use k as the constant of variation.
-The altitude $h$ of an equilateral triangle varies directly as one side s.

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