Question

Which equation has a constant of proportionality equal to 3? A. y= 8/5 x B. y= 1/3 x C. y= 1/4 x D. y= 18/6 x PLEASE HELP ME :c

Answer 1

Answer:

(D) $y=\frac{18}{6}x$

Step-by-step explanation:

We will be able to know if an equation has a constant of proportionality of 3 if the constant which is being multiplied by x is equal to 3.

$\frac{8}{5} =1.6$ so no for A.

$\frac{1}{3} = 0.\overline{33}$ so no for B too.

$\frac{1}{4} = 0.25$ so no for C as well.

$\frac{18}{6} = 3$, so D works.

Hope this helped!