What is the constant of proportionality in the equation StartFraction x over y EndFraction = StartFraction 2 over 9 EndFraction?

StartFraction 2 over 9 EndFraction

2

StartFraction 9 over 2 EndFraction

9

Respuesta :

Answer:

(C)9/2

Step-by-step explanation:

Given the equation

[tex]\dfrac{x}{y}= \dfrac{2}{9}[/tex]

Two variables are in direct proportion when it is written in the form y=kx where k is the proportionality constant. To obtain the constant of proportionality, we simply make y the subject of the equation.

Therefore, we cross multiply.

2y=9x

Divide both sides by 2

[tex]y= \dfrac{9}{2}x[/tex]

Therefore, the constant of proportionality in the equation is 9/2.

Answer: Theoretically the answer will be  (C)-9/2 If im wrong let me know

Step-by-step explanation: