Final answer:
Luke's purple hair and tattoos are examples of symbolism and reflect his identity and values through association with a rock band's iconography, conveying a sense of belonging to a cultural community.
Step-by-step explanation:
Luke's appearance, colored hair, and tattoos reflecting a rock band's iconography, is an example of symbolism functioning as a source of identity and personal expression. In this context, the symbolic function relates to how Luke associates himself with the values, beliefs, or aesthetics conveyed by the band's iconography. This use of symbolism is evident in various cultural expressions, like uniform patterns in sports teams and cultural identities, where such symbols are widely recognized and have a shared meaning within a group or community.
Colors and symbols possess traditional meanings in culture and art. For example, purple might be associated with royalty or spirituality, gold with wealth or divinity, and red can symbolize passion or revolution. Luke's hair color and body art are not merely personal aesthetic choices but also serve as a visual language conveying affiliation, values, and identity related to the rock band he admires.