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) $P = k x y ^ { 2 }$

Question

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) $P = k x y ^ { 2 }$

Quizplus · Accepted Answer

Joint variation means that P is directly proportional to multiple variables. In this case, P varies directly as x and the square root of y, which is represented by $P = k x \sqrt { y }$.

Write a Variation Model P=kxyP = \frac { k } { x \sqrt { y } }P=xy​k​

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