To determine the appropriate graph for representing survey data about the number of minutes spent watching TV each day, we need to consider the nature of the data. A line graph is typically used for continuous data over time, while a bar graph is suitable for comparing discrete categories. A picture graph can visually represent data in a more engaging way, and a line plot is useful for showing individual data points. However, the specific choice of graph depends on the context and the audience. In this case, the question does not provide enough information to definitively choose one graph over the others, hence the answer indicates that the function cannot be determined.