Answer :

y = 5/2x

It is represent proportional.

y = x - 3

It is not represent proportional.

y = 28x

It is represent proportional.

y = 6/x

It is not represent proportional.

Given that;

All the expressions are,

y = 1/2x•5

-3 + x = y

y/4 = 7x

y/2 = 3/x

Since, We know that;

Proportional equation is,

y = k x

Where, k is constant of proportionality.

Now, From expressions;

y = 1/2x•5

y = 5/2x

Hence, It is represent proportional.

-3 + x = y

y = x - 3

Hence, It is not represent proportional.

y/4 = 7x

y = 28x

Hence, It is represent proportional.

y/2 = 3/x

y = 6/x

Hence, It is not represent proportional.

Learn more about the proportion visit:

https://brainly.com/question/1496357

#SPJ1

Thanks for taking the time to read y 1 2x 5 3 x y y 4 7x y 2 3 x I need all this to see if it s proportional and. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada