Answer:
A) y = 9x
Step-by-step explanation:
Proportional relationships shows the relationship between two or more variables where their ratios are equivalent in a given expression. It is majorly a direct relation, which implies that as the value of on variable increases, the value of the other variable also increase.
From the expressions given, the first shows a good proportion between the variables given.
So, y = 9x is the answer.
