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Which equation has a constant of proportionality equal to 4? A 4y=4x B 4y=12x C 3y=4x D 3y=12x

Sagot :

An equation has a constant of proportionality if x is a multiple of y or vice-versa.

We simplify each equation

A) [tex]4y=4x \\ y=x[/tex]
B) [tex]4y=12x \\ y=3x[/tex]
C) [tex]3y=4x \\ y= \frac{4}{3}x [/tex]
D)[tex]3y=12x \\ y=4x[/tex]

Only D has constant of proportionality equal to 4 so D is the answer