In AP Calculus, limits must be understood across multiple representations: graphical, numerical, analytical, and verbal. A student should be able to look at a graph, a table, an equation, or a written description and connect them all to the same underlying idea of approach. This matters because calculus is not just about manipulating symbols. It is about understanding how different forms of information describe the same behavior near a point.
Connecting representations means translating what one form tells you into another form. A table may suggest a limit numerically, a graph may confirm it visually, and an algebraic simplification may justify it symbolically. Strong calculus understanding comes from moving between these forms smoothly. This is also why AP problems often combine several representations in one question rather than separating them completely.