1. The problem statement, all variables and given/known data This is a general question: What is span in linear algebra? 2. Relevant equations span = linear distribution span(v1, v2, ..., vk) = every linear combination of v1, v2, ..., vk 3. The attempt at a solution I've try to visualize what span is, but I just can't "see" it. I don't understand what span is or what it does.