This diagram illustrates consumer choice using a coordinate system where the horizontal axis represents the number of cinema tickets (from 0 to 24) and the vertical axis represents the number of nights out (from 0 to 16). It depicts two scenarios. The first scenario features a budget constraint connecting (0, 15) and (24, 0), with the indifference curve IC1 being tangent to it at the optimal choice point A (13, 7). The second scenario shows a different budget constraint connecting (0, 15) and (16, 0), where the indifference curve IC2 is tangent at the optimal choice point C (10, 6).