Final answer:
In physics, the horizontal distance or range of a projectile is indicated on the x-axis of a graph, which is used to describe motion in two dimensions.
Step-by-step explanation:
In physics, the term range is associated with projectile motion and refers to the horizontal distance traveled by a projectile. The range of a projectile is found on the x-axis of a graph. This axis is used to indicate distances that are horizontal and parallel to the ground when analyzing motion in two dimensions, which is also applicable in the study of projectile motion. The two-dimensional coordinate system normally consists of the x-axis for horizontal distances and the y-axis for vertical distances. The addition of the z-axis is used for three-dimensional space to provide depth. However, the range of a projectile, as it relates to physics problems involving motion, typically focuses solely on the x-axis, assuming level ground.