Question

If anyone could help?

Answer 1

`y=(5)/(7)x` and
`y=(7)/(9)x`

Explanation:

A simple way to solve this problem is to plug the corresponding x and y into the function. We need only one pair since all the functions are quasi-linear (y=kx) and the increase is proportional.

In
`y=(5)/(7)x` when x=3, y=15/4≈2.14

In
`y=(3)/(5)x` when x=3, y=1.8

In
`y=(7)/(9)x` when x=3, y≈2.33

In
`y=(7)/(11)x` when x=3, y≈1.90

We can observe that in two cases,
`y=(5)/(7)x` and
`y=(7)/(9)x`, y is greater than 2.