Answer:
Proportional.
Step-by-step explanation:
We have been given that given an equation \(y=-9x\). We are asked to determine whether the given equation is proportional or not.
We know that two proportional quantities are in form \(y=kx\), where k is constant of proportionality.
We can see that our given equation is in form \(y=kx\), where \(k=-9\).
Therefore, the given equation is directly proportional.
