Question

Please help!

Which equation has a constant of proportionality equal to 1?
Choose 1 answer:

A. Y= 10/11x
B. Y = 7/8x
C. Y= 3/15x
D. Y=x

Answer 1

it's D

Explanation:

Khan Academy

Answer 2

`\huge\boxed{\sf D.}`

Explanation:

If

Y is directly proportional to x

Then

Y ∝ x

Changing proportionality to equality

Y = k x

If k = 1 , then

Y = x

`\rule[225]{225}{2}`

Hope this helped!

~AH1807