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a proportional relationship is represented by the equation 2x =18y. if x is proportional to y what is the constant of proportionality?


Sagot :

[tex]2x=18y\\ x=9y \Rightarrow \boxed{k=9}[/tex]
iGreen
2x = 18y

Divide 2 to both sides:

x = 9y

So the constant of proportionality is 9.