Question

The cost for an upcoming field trip is $30 per student. The cost of the field trip, is dollars, is a function of the number of students x.

Select ALL the possible inputs (domain) for the function defined by C(x)=30x
where x is number of students attending the field trip.

(1 point)
Responses

14 3/4
14 3/4

22
22

4.5
4.5

45
45

15

Answer 1

22, 45, and 15

Reason: x must be a whole number (number of students), so fractional values like 14 3/4 and 4.5 are not allowed.