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

Question

f(x)=15x

 

What is the practical domain of the function if the florist sells 25 flower arrangements?

All multiples of 15 between 0 and 375, inclusive

All integers from 0 to 15, inclusive

All integers from 0 to 25, inclusive

All real numbers

Answer 1

Remember that the domain of a function is the set of "input" or argument values for which the function is defined.

 

If the florist has 25 flower arrangements to sell, the number actually sold may be any one integer of the set:

   {0, 1, 2, 3, ..., 25}     These are all the possible values for x.