Un cañón lanza un proyectil desde un valle con una velocidad de 120 m/s a un ángulo de 60 grados en un tiempo de 5 segundos. El alcance del proyectil es:

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.

That depends on what kind of environ meant it is in  in space it has the same force that was applied when the velocity was gained