Answer:
[tex]y = - 10x[/tex]
Step-by-step explanation:
A proportional relationship has equation:
[tex]y = kx[/tex]
where k is the constant of proportionality.
Since we are looking for a proportional relationship that has a constant of proportionality equal to -10, we have k=-10.
We substitute k=-10 into the equation to get:
[tex]y = - 10x[/tex]
Therefore the correct choice is
[tex]y = - 10x[/tex]
