If in a table the x value is 0 and the y value is another number, would the table be proportional?

Question

 My question is dealing with proportional and non-proportional questions. I need to know if the table would be proportional if the x value is zero and the y value is another besides zero would the table be proportional or non-proportional. Please help me ! Thank you I really apreciate your help with my problem/question.

Answer 1

No, it can't be proportional because the only value proportional to 0 is zero itself. However, there can be a linear relationship such as y=ax+b, where b is non-zero. Proportionality applies if b=0. And proportionality isn't restricted to a linear relationship. y=ax^3 is a proportionality but y=ax^3+b isn't.