Yes, the number of students on a field trip is a function of the number of buses used. A function is a relationship between two variables, where each input (number of buses) corresponds to exactly one output (number of students). In this case, the number of students is dependent on the number of buses used. If more buses are used, it is likely that more students can be accommodated. However, it is also possible that multiple buses are not filled to capacity, resulting in a different number of students for each different number of buses used. Therefore, the number of students is a function of the number of buses used.
