Which spatial data type uses points on a 2D or 3D Cartesian plane that can be connected to form lines or polygons?

• A. Raster
• B. Vector
• C. Neither
• D. Both

Answer: (B)

Points on a 2D or 3D Cartesian plane that can be connected to form lines or polygons describes vector data. In vector data, features are defined by explicit coordinates: points serve as vertices, lines are sequences of those points, and polygons are closed sequences that create boundaries. This allows precise, discrete geometry such as roads (lines), parcels (polygons), or locations (points), and it can be extended to 3D with z coordinates for elevation. Raster data, by contrast, stores information as a grid of cells with values and does not represent geometry by connected coordinates. So the data type described is vector.