Answer:
The correct option is 2. The proportional relationship represented by the equation y=12.5x.
Step-by-step explanation:
If y and x shows a proportional relationship, then
[tex]y\propto x[/tex]
[tex]y=kx[/tex]
Where, k is constant of proportionality.
First equation is
[tex]y=3x^2[/tex]
It does not represents a proportional relationship.
Second equation is
[tex]y=12.5[/tex]
It represents a proportional relationship. So, option 2 is correct.
Third equation is
[tex]x+y=3[/tex]
[tex]y=3-x[/tex]
It does not represents a proportional relationship.
Fourth equation is
[tex]y=4x-1[/tex]
It does not represents a proportional relationship.
Therefore correct option is 2. The proportional relationship represented by the equation y=12.5x.
