Question

A florist has 25 flower arrangements to sell. The amount of money the florist makes for selling x flower arrangements is represented by a function.

f(x)=15x

What is the practical domain of the function?



Responses

a all real numbers
a all real numbers

b all multiples of 15 between 0 and 375, inclusive
b all multiples of 15 between 0 and 375, inclusive

c all integers from 0 to 25, inclusive
c all integers from 0 to 25, inclusive

d all integers from 0 to 15, inclusive
d all integers from 0 to 15, inclusive

Answer 1

c — all integers from 0 to 25, inclusive

Reason: x counts how many arrangements are sold, so it must be a whole number between 0 and the 25 available.