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

(D)
`y=(18)/(6)x`

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.

`(8)/(5) =1.6` so no for A.

`(1)/(3) = 0.\overline{33}` so no for B too.

`(1)/(4) = 0.25` so no for C as well.

`(18)/(6) = 3`, so D works.

Hope this helped!