What is a defining characteristic of vector images?

• A. Pixel-based and resolution-dependent.
• B. Not scalable.
• C. Defined by lines, layers, curves, and shapes, allowing for scalability without losing quality.
• D. Only supports black and white outlines.

Answer: (C)

Vector images are defined by mathematical descriptions of lines, curves, and shapes, often organized with layers. Because these elements are described mathematically, you can scale the image to any size without losing edge sharpness or quality. This makes vectors ideal for logos and typography, where crisp detail at multiple sizes is essential. In contrast, raster images rely on a fixed grid of pixels, so enlarging them leads to blur or jagged edges. Vector graphics can also include color fills, gradients, and strokes, and you can edit individual shapes by adjusting anchor points and curves without degrading the whole image. The defining trait is the ability to scale without losing quality due to their mathematical description of shapes.