Which statement best describes why vector graphics are scalable without loss of quality?

Which statement best describes why vector graphics are scalable without loss of quality?

• A. They are defined by mathematical paths and scale without loss of quality.
• B. They rely on pixel grids.
• C. They require fixed resolution.
• D. They can only be printed at specific sizes.

Answer: (A)

Scalability without quality loss comes from how vector graphics are defined. They are described by mathematical paths—points, lines, curves, and shapes—so when you resize, the software recalculates the geometry and renders it at the new size. This keeps edges sharp and curves smooth regardless of scale. Raster graphics, on the other hand, are made of a fixed grid of pixels; enlarging them magnifies individual pixels, leading to jagged edges or blur. Fixed resolution likewise restricts scaling because the detail is tied to that original pixel count. Therefore, the statement that vector graphics scale without loss of quality because they are defined by mathematical paths is the best description.

Scalability without quality loss comes from how vector graphics are defined. They are described by mathematical paths—points, lines, curves, and shapes—so when you resize, the software recalculates the geometry and renders it at the new size. This keeps edges sharp and curves smooth regardless of scale. Raster graphics, on the other hand, are made of a fixed grid of pixels; enlarging them magnifies individual pixels, leading to jagged edges or blur. Fixed resolution likewise restricts scaling because the detail is tied to that original pixel count. Therefore, the statement that vector graphics scale without loss of quality because they are defined by mathematical paths is the best description.