Write a Variation Model $P = \frac { k } { x \sqrt { y } }$

Multiple Choice

Write a variation model. Use k as the constant of variation. P varies jointly as x and the square root of y.

A) $P = \frac { k } { x \sqrt { y } }$
B) $P = \frac { k x } { \sqrt { y } }$
C) $P = k x \sqrt { y }$
D) $P = k x y ^ { 2 }$