"Which ball is yours?"

Translation: Kiu pilko estas la via?

[TheKinglyWe]

kiu pilk la vias?(can i treat via like an old adjective? this might already of been covered but ive decided to stop reviewing abandon timidity and boldy march forward...)

[LouisSepdekdu]

You can't put a verb ending on every adjective and use it like it means "to be + adjective". Doing that will make you write "Mi rapidas" for "I'm fast" when it actually means "I'm hurrying".

[Jaerivus]

I got by with just "via"-- no leading "la".

Is its inclusion optional, or is there some small distinction between ending a sentence with "via" and "la via" ?

[LouisSepdekdu]

It's easier to explain in a language where that distinction exists. I think both meaning are translated as just "yours" in English.

Tiu pilko is via = That ball is one of your balls.
Tiu pilko is la via = That ball is the ball which belongs to you.

[Jaerivus]

Thank you very much for clarifying!